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Finding the Fourth Proportional to 71,487.74, 107,232.38 and 21,568.26

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Solution

The fourth proportional to 71,487.74, 107,232.38 and 21,568.26 is: 32,352.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,487.74 : 107,232.38 = 21,568.26 : x
  2. Step 2: Convert to fraction form
    71,487.74/107,232.38 = 21,568.26/x
  3. Step 3: Cross multiply
    71,487.74x = 107,232.38 × 21,568.26
  4. Step 4: Simplify right side
    71,487.74x = 2,312,815,744.42
  5. Step 5: Solve for x
    x = 2,312,815,744.42/71,487.74
  6. Step 6: Final answer
    x = 32,352.62

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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.