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Finding the Third Proportional to 8,965.13 and 13,159.69

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Solution

The third proportional to 8,965.13 and 13,159.69 is: 19,316.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,965.13 : 13,159.69 = 13,159.69 : x
  2. Step 2: Convert to fraction form
    8,965.13/13,159.69 = 13,159.69/x
  3. Step 3: Cross multiply
    8,965.13x = 13,159.69 × 13,159.69
  4. Step 4: Simplify right side
    8,965.13x = 173,177,375.10
  5. Step 5: Solve for x
    x = 173,177,375.10/8,965.13
  6. Step 6: Final answer
    x = 19,316.78

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.