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Finding the Third Proportional to 39,649.50 and 63,747

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Solution

The third proportional to 39,649.50 and 63,747 is: 102,490.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,649.50 : 63,747 = 63,747 : x
  2. Step 2: Convert to fraction form
    39,649.50/63,747 = 63,747/x
  3. Step 3: Cross multiply
    39,649.50x = 63,747 × 63,747
  4. Step 4: Simplify right side
    39,649.50x = 4,063,680,009
  5. Step 5: Solve for x
    x = 4,063,680,009/39,649.50
  6. Step 6: Final answer
    x = 102,490.07

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.