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Finding the Third Proportional to 49,238 and 76,386

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Solution

The third proportional to 49,238 and 76,386 is: 118,502.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,238 : 76,386 = 76,386 : x
  2. Step 2: Convert to fraction form
    49,238/76,386 = 76,386/x
  3. Step 3: Cross multiply
    49,238x = 76,386 × 76,386
  4. Step 4: Simplify right side
    49,238x = 5,834,820,996
  5. Step 5: Solve for x
    x = 5,834,820,996/49,238
  6. Step 6: Final answer
    x = 118,502.40

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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.