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Finding the Fourth Proportional to 65,911.55, 98,871.92 and 26,468.65

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Solution

The fourth proportional to 65,911.55, 98,871.92 and 26,468.65 is: 39,704.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,911.55 : 98,871.92 = 26,468.65 : x
  2. Step 2: Convert to fraction form
    65,911.55/98,871.92 = 26,468.65/x
  3. Step 3: Cross multiply
    65,911.55x = 98,871.92 × 26,468.65
  4. Step 4: Simplify right side
    65,911.55x = 2,617,005,983.29
  5. Step 5: Solve for x
    x = 2,617,005,983.29/65,911.55
  6. Step 6: Final answer
    x = 39,704.82

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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.