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Finding the Third Proportional to 11,151.75 and 15,856.13

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Solution

The third proportional to 11,151.75 and 15,856.13 is: 22,545.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,151.75 : 15,856.13 = 15,856.13 : x
  2. Step 2: Convert to fraction form
    11,151.75/15,856.13 = 15,856.13/x
  3. Step 3: Cross multiply
    11,151.75x = 15,856.13 × 15,856.13
  4. Step 4: Simplify right side
    11,151.75x = 251,416,700.02
  5. Step 5: Solve for x
    x = 251,416,700.02/11,151.75
  6. Step 6: Final answer
    x = 22,545.04

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.