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Finding the Third Proportional to 54,239 and 82,124

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Solution

The third proportional to 54,239 and 82,124 is: 124,345.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,239 : 82,124 = 82,124 : x
  2. Step 2: Convert to fraction form
    54,239/82,124 = 82,124/x
  3. Step 3: Cross multiply
    54,239x = 82,124 × 82,124
  4. Step 4: Simplify right side
    54,239x = 6,744,351,376
  5. Step 5: Solve for x
    x = 6,744,351,376/54,239
  6. Step 6: Final answer
    x = 124,345.05

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.