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Finding the Third Proportional to 49,356 and 78,282

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Solution

The third proportional to 49,356 and 78,282 is: 124,160.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,356 : 78,282 = 78,282 : x
  2. Step 2: Convert to fraction form
    49,356/78,282 = 78,282/x
  3. Step 3: Cross multiply
    49,356x = 78,282 × 78,282
  4. Step 4: Simplify right side
    49,356x = 6,128,071,524
  5. Step 5: Solve for x
    x = 6,128,071,524/49,356
  6. Step 6: Final answer
    x = 124,160.62

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.