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Finding the Third Proportional to 40,239.50 and 63,703

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Solution

The third proportional to 40,239.50 and 63,703 is: 100,847.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,239.50 : 63,703 = 63,703 : x
  2. Step 2: Convert to fraction form
    40,239.50/63,703 = 63,703/x
  3. Step 3: Cross multiply
    40,239.50x = 63,703 × 63,703
  4. Step 4: Simplify right side
    40,239.50x = 4,058,072,209
  5. Step 5: Solve for x
    x = 4,058,072,209/40,239.50
  6. Step 6: Final answer
    x = 100,847.98

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.