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Finding the Third Proportional to 6,859.13 and 9,172.13

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Solution

The third proportional to 6,859.13 and 9,172.13 is: 12,265.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,859.13 : 9,172.13 = 9,172.13 : x
  2. Step 2: Convert to fraction form
    6,859.13/9,172.13 = 9,172.13/x
  3. Step 3: Cross multiply
    6,859.13x = 9,172.13 × 9,172.13
  4. Step 4: Simplify right side
    6,859.13x = 84,127,877.02
  5. Step 5: Solve for x
    x = 84,127,877.02/6,859.13
  6. Step 6: Final answer
    x = 12,265.10

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.