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Finding the Third Proportional to 43,561.50 and 61,344

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Solution

The third proportional to 43,561.50 and 61,344 is: 86,385.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,561.50 : 61,344 = 61,344 : x
  2. Step 2: Convert to fraction form
    43,561.50/61,344 = 61,344/x
  3. Step 3: Cross multiply
    43,561.50x = 61,344 × 61,344
  4. Step 4: Simplify right side
    43,561.50x = 3,763,086,336
  5. Step 5: Solve for x
    x = 3,763,086,336/43,561.50
  6. Step 6: Final answer
    x = 86,385.60

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.