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Finding the Third Proportional to 18,748 and 27,957

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Solution

The third proportional to 18,748 and 27,957 is: 41,689.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,748 : 27,957 = 27,957 : x
  2. Step 2: Convert to fraction form
    18,748/27,957 = 27,957/x
  3. Step 3: Cross multiply
    18,748x = 27,957 × 27,957
  4. Step 4: Simplify right side
    18,748x = 781,593,849
  5. Step 5: Solve for x
    x = 781,593,849/18,748
  6. Step 6: Final answer
    x = 41,689.45

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.