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Finding the Third Proportional to 61,533 and 87,990.75

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Solution

The third proportional to 61,533 and 87,990.75 is: 125,824.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,533 : 87,990.75 = 87,990.75 : x
  2. Step 2: Convert to fraction form
    61,533/87,990.75 = 87,990.75/x
  3. Step 3: Cross multiply
    61,533x = 87,990.75 × 87,990.75
  4. Step 4: Simplify right side
    61,533x = 7,742,372,085.56
  5. Step 5: Solve for x
    x = 7,742,372,085.56/61,533
  6. Step 6: Final answer
    x = 125,824.71

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.