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Finding the Third Proportional to 28,782 and 38,853

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Solution

The third proportional to 28,782 and 38,853 is: 52,447.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,782 : 38,853 = 38,853 : x
  2. Step 2: Convert to fraction form
    28,782/38,853 = 38,853/x
  3. Step 3: Cross multiply
    28,782x = 38,853 × 38,853
  4. Step 4: Simplify right side
    28,782x = 1,509,555,609
  5. Step 5: Solve for x
    x = 1,509,555,609/28,782
  6. Step 6: Final answer
    x = 52,447.91

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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.