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Finding the Fourth Proportional to 71,516.84, 107,292.62 and 21,593.96

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Solution

The fourth proportional to 71,516.84, 107,292.62 and 21,593.96 is: 32,396.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,516.84 : 107,292.62 = 21,593.96 : x
  2. Step 2: Convert to fraction form
    71,516.84/107,292.62 = 21,593.96/x
  3. Step 3: Cross multiply
    71,516.84x = 107,292.62 × 21,593.96
  4. Step 4: Simplify right side
    71,516.84x = 2,316,872,342.98
  5. Step 5: Solve for x
    x = 2,316,872,342.98/71,516.84
  6. Step 6: Final answer
    x = 32,396.18

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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.