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Finding the Third Proportional to 39,631.50 and 61,459

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Solution

The third proportional to 39,631.50 and 61,459 is: 95,308.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,631.50 : 61,459 = 61,459 : x
  2. Step 2: Convert to fraction form
    39,631.50/61,459 = 61,459/x
  3. Step 3: Cross multiply
    39,631.50x = 61,459 × 61,459
  4. Step 4: Simplify right side
    39,631.50x = 3,777,208,681
  5. Step 5: Solve for x
    x = 3,777,208,681/39,631.50
  6. Step 6: Final answer
    x = 95,308.24

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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.