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Finding the Third Proportional to 3,913.13 and 8,395.13

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Solution

The third proportional to 3,913.13 and 8,395.13 is: 18,010.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.13 : 8,395.13 = 8,395.13 : x
  2. Step 2: Convert to fraction form
    3,913.13/8,395.13 = 8,395.13/x
  3. Step 3: Cross multiply
    3,913.13x = 8,395.13 × 8,395.13
  4. Step 4: Simplify right side
    3,913.13x = 70,478,123.77
  5. Step 5: Solve for x
    x = 70,478,123.77/3,913.13
  6. Step 6: Final answer
    x = 18,010.70

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.