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Finding the Fourth Proportional to 65,562.65, 98,344.10 and 28,098.43

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Solution

The fourth proportional to 65,562.65, 98,344.10 and 28,098.43 is: 42,147.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,562.65 : 98,344.10 = 28,098.43 : x
  2. Step 2: Convert to fraction form
    65,562.65/98,344.10 = 28,098.43/x
  3. Step 3: Cross multiply
    65,562.65x = 98,344.10 × 28,098.43
  4. Step 4: Simplify right side
    65,562.65x = 2,763,314,809.76
  5. Step 5: Solve for x
    x = 2,763,314,809.76/65,562.65
  6. Step 6: Final answer
    x = 42,147.70

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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.