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Finding the Fourth Proportional to 65,708.60, 98,552.11 and 18,326.91

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Solution

The fourth proportional to 65,708.60, 98,552.11 and 18,326.91 is: 27,487.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,708.60 : 98,552.11 = 18,326.91 : x
  2. Step 2: Convert to fraction form
    65,708.60/98,552.11 = 18,326.91/x
  3. Step 3: Cross multiply
    65,708.60x = 98,552.11 × 18,326.91
  4. Step 4: Simplify right side
    65,708.60x = 1,806,155,650.28
  5. Step 5: Solve for x
    x = 1,806,155,650.28/65,708.60
  6. Step 6: Final answer
    x = 27,487.36

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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.