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Finding the Third Proportional to 42,630 and 63,817

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Solution

The third proportional to 42,630 and 63,817 is: 95,533.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,630 : 63,817 = 63,817 : x
  2. Step 2: Convert to fraction form
    42,630/63,817 = 63,817/x
  3. Step 3: Cross multiply
    42,630x = 63,817 × 63,817
  4. Step 4: Simplify right side
    42,630x = 4,072,609,489
  5. Step 5: Solve for x
    x = 4,072,609,489/42,630
  6. Step 6: Final answer
    x = 95,533.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.