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Finding the Third Proportional to 31,357 and 48,574

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Solution

The third proportional to 31,357 and 48,574 is: 75,244.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,357 : 48,574 = 48,574 : x
  2. Step 2: Convert to fraction form
    31,357/48,574 = 48,574/x
  3. Step 3: Cross multiply
    31,357x = 48,574 × 48,574
  4. Step 4: Simplify right side
    31,357x = 2,359,433,476
  5. Step 5: Solve for x
    x = 2,359,433,476/31,357
  6. Step 6: Final answer
    x = 75,244.23

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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.