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Finding the Third Proportional to 38,440 and 83,612

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Solution

The third proportional to 38,440 and 83,612 is: 181,866.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,440 : 83,612 = 83,612 : x
  2. Step 2: Convert to fraction form
    38,440/83,612 = 83,612/x
  3. Step 3: Cross multiply
    38,440x = 83,612 × 83,612
  4. Step 4: Simplify right side
    38,440x = 6,990,966,544
  5. Step 5: Solve for x
    x = 6,990,966,544/38,440
  6. Step 6: Final answer
    x = 181,866.98

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.