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Finding the Fourth Proportional to 64,397.80, 96,585.76 and 17,013.42

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Solution

The fourth proportional to 64,397.80, 96,585.76 and 17,013.42 is: 25,517.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,397.80 : 96,585.76 = 17,013.42 : x
  2. Step 2: Convert to fraction form
    64,397.80/96,585.76 = 17,013.42/x
  3. Step 3: Cross multiply
    64,397.80x = 96,585.76 × 17,013.42
  4. Step 4: Simplify right side
    64,397.80x = 1,643,254,100.90
  5. Step 5: Solve for x
    x = 1,643,254,100.90/64,397.80
  6. Step 6: Final answer
    x = 25,517.24

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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.