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Finding the Fourth Proportional to 15,963.62, 22,010.28 and 9,984.90

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Solution

The fourth proportional to 15,963.62, 22,010.28 and 9,984.90 is: 13,766.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,963.62 : 22,010.28 = 9,984.90 : x
  2. Step 2: Convert to fraction form
    15,963.62/22,010.28 = 9,984.90/x
  3. Step 3: Cross multiply
    15,963.62x = 22,010.28 × 9,984.90
  4. Step 4: Simplify right side
    15,963.62x = 219,770,489.87
  5. Step 5: Solve for x
    x = 219,770,489.87/15,963.62
  6. Step 6: Final answer
    x = 13,766.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.