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Finding the Fourth Proportional to 65,962.73, 98,888.61 and 21,565.28

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Solution

The fourth proportional to 65,962.73, 98,888.61 and 21,565.28 is: 32,329.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,962.73 : 98,888.61 = 21,565.28 : x
  2. Step 2: Convert to fraction form
    65,962.73/98,888.61 = 21,565.28/x
  3. Step 3: Cross multiply
    65,962.73x = 98,888.61 × 21,565.28
  4. Step 4: Simplify right side
    65,962.73x = 2,132,560,563.46
  5. Step 5: Solve for x
    x = 2,132,560,563.46/65,962.73
  6. Step 6: Final answer
    x = 32,329.78

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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.