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Finding the Third Proportional to 48,631.50 and 74,119.50

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Solution

The third proportional to 48,631.50 and 74,119.50 is: 112,965.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,631.50 : 74,119.50 = 74,119.50 : x
  2. Step 2: Convert to fraction form
    48,631.50/74,119.50 = 74,119.50/x
  3. Step 3: Cross multiply
    48,631.50x = 74,119.50 × 74,119.50
  4. Step 4: Simplify right side
    48,631.50x = 5,493,700,280.25
  5. Step 5: Solve for x
    x = 5,493,700,280.25/48,631.50
  6. Step 6: Final answer
    x = 112,965.88

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.