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Finding the Third Proportional to 10,656.56 and 15,985.13

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Solution

The third proportional to 10,656.56 and 15,985.13 is: 23,978.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,656.56 : 15,985.13 = 15,985.13 : x
  2. Step 2: Convert to fraction form
    10,656.56/15,985.13 = 15,985.13/x
  3. Step 3: Cross multiply
    10,656.56x = 15,985.13 × 15,985.13
  4. Step 4: Simplify right side
    10,656.56x = 255,524,221.27
  5. Step 5: Solve for x
    x = 255,524,221.27/10,656.56
  6. Step 6: Final answer
    x = 23,978.11

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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.