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Finding the Fourth Proportional to 18,044.76, 24,901.34 and 9,978.36

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Solution

The fourth proportional to 18,044.76, 24,901.34 and 9,978.36 is: 13,769.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,044.76 : 24,901.34 = 9,978.36 : x
  2. Step 2: Convert to fraction form
    18,044.76/24,901.34 = 9,978.36/x
  3. Step 3: Cross multiply
    18,044.76x = 24,901.34 × 9,978.36
  4. Step 4: Simplify right side
    18,044.76x = 248,474,535.00
  5. Step 5: Solve for x
    x = 248,474,535.00/18,044.76
  6. Step 6: Final answer
    x = 13,769.90

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Find fourth proportional to 9,022.38, 12,450.67 and 4,989.18
Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.