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Finding the Third Proportional to 4,432 and 5,312

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Solution

The third proportional to 4,432 and 5,312 is: 6,366.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,432 : 5,312 = 5,312 : x
  2. Step 2: Convert to fraction form
    4,432/5,312 = 5,312/x
  3. Step 3: Cross multiply
    4,432x = 5,312 × 5,312
  4. Step 4: Simplify right side
    4,432x = 28,217,344
  5. Step 5: Solve for x
    x = 28,217,344/4,432
  6. Step 6: Final answer
    x = 6,366.73

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Why These Related Problems?

These problems maintain the same ratio (1.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.