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Finding the Third Proportional to 6,912.84 and 10,432.55

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Solution

The third proportional to 6,912.84 and 10,432.55 is: 15,744.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.84 : 10,432.55 = 10,432.55 : x
  2. Step 2: Convert to fraction form
    6,912.84/10,432.55 = 10,432.55/x
  3. Step 3: Cross multiply
    6,912.84x = 10,432.55 × 10,432.55
  4. Step 4: Simplify right side
    6,912.84x = 108,838,034.30
  5. Step 5: Solve for x
    x = 108,838,034.30/6,912.84
  6. Step 6: Final answer
    x = 15,744.32

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.