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Finding the Fourth Proportional to 64,165.72, 96,248.64 and 17,418.60

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Solution

The fourth proportional to 64,165.72, 96,248.64 and 17,418.60 is: 26,127.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,165.72 : 96,248.64 = 17,418.60 : x
  2. Step 2: Convert to fraction form
    64,165.72/96,248.64 = 17,418.60/x
  3. Step 3: Cross multiply
    64,165.72x = 96,248.64 × 17,418.60
  4. Step 4: Simplify right side
    64,165.72x = 1,676,516,560.70
  5. Step 5: Solve for x
    x = 1,676,516,560.70/64,165.72
  6. Step 6: Final answer
    x = 26,127.92

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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.