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Finding the Third Proportional to 39,865.50 and 85,563

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Solution

The third proportional to 39,865.50 and 85,563 is: 183,643.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,865.50 : 85,563 = 85,563 : x
  2. Step 2: Convert to fraction form
    39,865.50/85,563 = 85,563/x
  3. Step 3: Cross multiply
    39,865.50x = 85,563 × 85,563
  4. Step 4: Simplify right side
    39,865.50x = 7,321,026,969
  5. Step 5: Solve for x
    x = 7,321,026,969/39,865.50
  6. Step 6: Final answer
    x = 183,643.17

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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.