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Finding the Third Proportional to 6,381.60 and 9,892.76

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Solution

The third proportional to 6,381.60 and 9,892.76 is: 15,335.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381.60 : 9,892.76 = 9,892.76 : x
  2. Step 2: Convert to fraction form
    6,381.60/9,892.76 = 9,892.76/x
  3. Step 3: Cross multiply
    6,381.60x = 9,892.76 × 9,892.76
  4. Step 4: Simplify right side
    6,381.60x = 97,866,657.14
  5. Step 5: Solve for x
    x = 97,866,657.14/6,381.60
  6. Step 6: Final answer
    x = 15,335.76

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.