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Finding the Fourth Proportional to 66,372.48, 99,560.64 and 17,124.48

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Solution

The fourth proportional to 66,372.48, 99,560.64 and 17,124.48 is: 25,687.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,372.48 : 99,560.64 = 17,124.48 : x
  2. Step 2: Convert to fraction form
    66,372.48/99,560.64 = 17,124.48/x
  3. Step 3: Cross multiply
    66,372.48x = 99,560.64 × 17,124.48
  4. Step 4: Simplify right side
    66,372.48x = 1,704,924,188.47
  5. Step 5: Solve for x
    x = 1,704,924,188.47/66,372.48
  6. Step 6: Final answer
    x = 25,687.22

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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.