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Finding the Fourth Proportional to 18,057.72, 24,919.20 and 10,100.28

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Solution

The fourth proportional to 18,057.72, 24,919.20 and 10,100.28 is: 13,938.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,057.72 : 24,919.20 = 10,100.28 : x
  2. Step 2: Convert to fraction form
    18,057.72/24,919.20 = 10,100.28/x
  3. Step 3: Cross multiply
    18,057.72x = 24,919.20 × 10,100.28
  4. Step 4: Simplify right side
    18,057.72x = 251,690,897.38
  5. Step 5: Solve for x
    x = 251,690,897.38/18,057.72
  6. Step 6: Final answer
    x = 13,938.13

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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.