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Finding the Fourth Proportional to 18,098.61, 24,976.07 and 10,140.90

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Solution

The fourth proportional to 18,098.61, 24,976.07 and 10,140.90 is: 13,994.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,098.61 : 24,976.07 = 10,140.90 : x
  2. Step 2: Convert to fraction form
    18,098.61/24,976.07 = 10,140.90/x
  3. Step 3: Cross multiply
    18,098.61x = 24,976.07 × 10,140.90
  4. Step 4: Simplify right side
    18,098.61x = 253,279,750.45
  5. Step 5: Solve for x
    x = 253,279,750.45/18,098.61
  6. Step 6: Final answer
    x = 13,994.43

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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.