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Finding the Third Proportional to 54,672 and 80,154

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Solution

The third proportional to 54,672 and 80,154 is: 117,512.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,672 : 80,154 = 80,154 : x
  2. Step 2: Convert to fraction form
    54,672/80,154 = 80,154/x
  3. Step 3: Cross multiply
    54,672x = 80,154 × 80,154
  4. Step 4: Simplify right side
    54,672x = 6,424,663,716
  5. Step 5: Solve for x
    x = 6,424,663,716/54,672
  6. Step 6: Final answer
    x = 117,512.87

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.