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Finding the Third Proportional to 9,721.13 and 14,618.88

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Solution

The third proportional to 9,721.13 and 14,618.88 is: 21,984.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,721.13 : 14,618.88 = 14,618.88 : x
  2. Step 2: Convert to fraction form
    9,721.13/14,618.88 = 14,618.88/x
  3. Step 3: Cross multiply
    9,721.13x = 14,618.88 × 14,618.88
  4. Step 4: Simplify right side
    9,721.13x = 213,711,506.27
  5. Step 5: Solve for x
    x = 213,711,506.27/9,721.13
  6. Step 6: Final answer
    x = 21,984.24

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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.