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Finding the Third Proportional to 39,661.50 and 61,506

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Solution

The third proportional to 39,661.50 and 61,506 is: 95,381.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,661.50 : 61,506 = 61,506 : x
  2. Step 2: Convert to fraction form
    39,661.50/61,506 = 61,506/x
  3. Step 3: Cross multiply
    39,661.50x = 61,506 × 61,506
  4. Step 4: Simplify right side
    39,661.50x = 3,782,988,036
  5. Step 5: Solve for x
    x = 3,782,988,036/39,661.50
  6. Step 6: Final answer
    x = 95,381.87

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.