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Finding the Fourth Proportional to 71,378.40, 107,079.99 and 23,998.13

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Solution

The fourth proportional to 71,378.40, 107,079.99 and 23,998.13 is: 36,001.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,378.40 : 107,079.99 = 23,998.13 : x
  2. Step 2: Convert to fraction form
    71,378.40/107,079.99 = 23,998.13/x
  3. Step 3: Cross multiply
    71,378.40x = 107,079.99 × 23,998.13
  4. Step 4: Simplify right side
    71,378.40x = 2,569,719,520.42
  5. Step 5: Solve for x
    x = 2,569,719,520.42/71,378.40
  6. Step 6: Final answer
    x = 36,001.36

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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.