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Finding the Third Proportional to 54,680 and 84,328

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Solution

The third proportional to 54,680 and 84,328 is: 130,051.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,680 : 84,328 = 84,328 : x
  2. Step 2: Convert to fraction form
    54,680/84,328 = 84,328/x
  3. Step 3: Cross multiply
    54,680x = 84,328 × 84,328
  4. Step 4: Simplify right side
    54,680x = 7,111,211,584
  5. Step 5: Solve for x
    x = 7,111,211,584/54,680
  6. Step 6: Final answer
    x = 130,051.42

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.