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Finding the Third Proportional to 31,154.75 and 48,332

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Solution

The third proportional to 31,154.75 and 48,332 is: 74,979.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,154.75 : 48,332 = 48,332 : x
  2. Step 2: Convert to fraction form
    31,154.75/48,332 = 48,332/x
  3. Step 3: Cross multiply
    31,154.75x = 48,332 × 48,332
  4. Step 4: Simplify right side
    31,154.75x = 2,335,982,224
  5. Step 5: Solve for x
    x = 2,335,982,224/31,154.75
  6. Step 6: Final answer
    x = 74,979.97

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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.