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Finding the Third Proportional to 32,400 and 69,498

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Solution

The third proportional to 32,400 and 69,498 is: 149,073.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,400 : 69,498 = 69,498 : x
  2. Step 2: Convert to fraction form
    32,400/69,498 = 69,498/x
  3. Step 3: Cross multiply
    32,400x = 69,498 × 69,498
  4. Step 4: Simplify right side
    32,400x = 4,829,972,004
  5. Step 5: Solve for x
    x = 4,829,972,004/32,400
  6. Step 6: Final answer
    x = 149,073.21

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.