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Finding the Fourth Proportional to 71,515.33, 107,287.74 and 23,487.55

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Solution

The fourth proportional to 71,515.33, 107,287.74 and 23,487.55 is: 35,236.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,515.33 : 107,287.74 = 23,487.55 : x
  2. Step 2: Convert to fraction form
    71,515.33/107,287.74 = 23,487.55/x
  3. Step 3: Cross multiply
    71,515.33x = 107,287.74 × 23,487.55
  4. Step 4: Simplify right side
    71,515.33x = 2,519,926,425.86
  5. Step 5: Solve for x
    x = 2,519,926,425.86/71,515.33
  6. Step 6: Final answer
    x = 35,236.17

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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.