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Finding the Third Proportional to 49,221 and 76,359

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Solution

The third proportional to 49,221 and 76,359 is: 118,459.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,221 : 76,359 = 76,359 : x
  2. Step 2: Convert to fraction form
    49,221/76,359 = 76,359/x
  3. Step 3: Cross multiply
    49,221x = 76,359 × 76,359
  4. Step 4: Simplify right side
    49,221x = 5,830,696,881
  5. Step 5: Solve for x
    x = 5,830,696,881/49,221
  6. Step 6: Final answer
    x = 118,459.54

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.