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Finding the Third Proportional to 45,418 and 99,585

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Solution

The third proportional to 45,418 and 99,585 is: 218,353.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,418 : 99,585 = 99,585 : x
  2. Step 2: Convert to fraction form
    45,418/99,585 = 99,585/x
  3. Step 3: Cross multiply
    45,418x = 99,585 × 99,585
  4. Step 4: Simplify right side
    45,418x = 9,917,172,225
  5. Step 5: Solve for x
    x = 9,917,172,225/45,418
  6. Step 6: Final answer
    x = 218,353.35

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.