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Finding the Third Proportional to 40,242 and 63,706

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Solution

The third proportional to 40,242 and 63,706 is: 100,851.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,242 : 63,706 = 63,706 : x
  2. Step 2: Convert to fraction form
    40,242/63,706 = 63,706/x
  3. Step 3: Cross multiply
    40,242x = 63,706 × 63,706
  4. Step 4: Simplify right side
    40,242x = 4,058,454,436
  5. Step 5: Solve for x
    x = 4,058,454,436/40,242
  6. Step 6: Final answer
    x = 100,851.21

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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.