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Finding the Third Proportional to 3,748 and 5,072

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Solution

The third proportional to 3,748 and 5,072 is: 6,863.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,748 : 5,072 = 5,072 : x
  2. Step 2: Convert to fraction form
    3,748/5,072 = 5,072/x
  3. Step 3: Cross multiply
    3,748x = 5,072 × 5,072
  4. Step 4: Simplify right side
    3,748x = 25,725,184
  5. Step 5: Solve for x
    x = 25,725,184/3,748
  6. Step 6: Final answer
    x = 6,863.71

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.