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Finding the Fourth Proportional to 18,057.10, 24,920.07 and 10,100.06

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Solution

The fourth proportional to 18,057.10, 24,920.07 and 10,100.06 is: 13,938.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,057.10 : 24,920.07 = 10,100.06 : x
  2. Step 2: Convert to fraction form
    18,057.10/24,920.07 = 10,100.06/x
  3. Step 3: Cross multiply
    18,057.10x = 24,920.07 × 10,100.06
  4. Step 4: Simplify right side
    18,057.10x = 251,694,151.70
  5. Step 5: Solve for x
    x = 251,694,151.70/18,057.10
  6. Step 6: Final answer
    x = 13,938.80

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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.