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Finding the Third Proportional to 60,946 and 91,421

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Solution

The third proportional to 60,946 and 91,421 is: 137,134.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,946 : 91,421 = 91,421 : x
  2. Step 2: Convert to fraction form
    60,946/91,421 = 91,421/x
  3. Step 3: Cross multiply
    60,946x = 91,421 × 91,421
  4. Step 4: Simplify right side
    60,946x = 8,357,799,241
  5. Step 5: Solve for x
    x = 8,357,799,241/60,946
  6. Step 6: Final answer
    x = 137,134.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.