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Finding the Fourth Proportional to 7,400.70, 11,101.05 and 6,234.30

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Solution

The fourth proportional to 7,400.70, 11,101.05 and 6,234.30 is: 9,351.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.70 : 11,101.05 = 6,234.30 : x
  2. Step 2: Convert to fraction form
    7,400.70/11,101.05 = 6,234.30/x
  3. Step 3: Cross multiply
    7,400.70x = 11,101.05 × 6,234.30
  4. Step 4: Simplify right side
    7,400.70x = 69,207,276.02
  5. Step 5: Solve for x
    x = 69,207,276.02/7,400.70
  6. Step 6: Final answer
    x = 9,351.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.