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Finding the Fourth Proportional to 71,776, 107,664.96 and 22,528

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Solution

The fourth proportional to 71,776, 107,664.96 and 22,528 is: 33,792.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,776 : 107,664.96 = 22,528 : x
  2. Step 2: Convert to fraction form
    71,776/107,664.96 = 22,528/x
  3. Step 3: Cross multiply
    71,776x = 107,664.96 × 22,528
  4. Step 4: Simplify right side
    71,776x = 2,425,476,218.88
  5. Step 5: Solve for x
    x = 2,425,476,218.88/71,776
  6. Step 6: Final answer
    x = 33,792.30

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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.