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Finding the Third Proportional to 6,915.38 and 10,725.75

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Solution

The third proportional to 6,915.38 and 10,725.75 is: 16,635.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,915.38 : 10,725.75 = 10,725.75 : x
  2. Step 2: Convert to fraction form
    6,915.38/10,725.75 = 10,725.75/x
  3. Step 3: Cross multiply
    6,915.38x = 10,725.75 × 10,725.75
  4. Step 4: Simplify right side
    6,915.38x = 115,041,713.06
  5. Step 5: Solve for x
    x = 115,041,713.06/6,915.38
  6. Step 6: Final answer
    x = 16,635.64

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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.