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Finding the Third Proportional to 28,624 and 61,480

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Solution

The third proportional to 28,624 and 61,480 is: 132,049.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,624 : 61,480 = 61,480 : x
  2. Step 2: Convert to fraction form
    28,624/61,480 = 61,480/x
  3. Step 3: Cross multiply
    28,624x = 61,480 × 61,480
  4. Step 4: Simplify right side
    28,624x = 3,779,790,400
  5. Step 5: Solve for x
    x = 3,779,790,400/28,624
  6. Step 6: Final answer
    x = 132,049.69

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.