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Finding the Third Proportional to 47,387 and 102,364

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Solution

The third proportional to 47,387 and 102,364 is: 221,123.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,387 : 102,364 = 102,364 : x
  2. Step 2: Convert to fraction form
    47,387/102,364 = 102,364/x
  3. Step 3: Cross multiply
    47,387x = 102,364 × 102,364
  4. Step 4: Simplify right side
    47,387x = 10,478,388,496
  5. Step 5: Solve for x
    x = 10,478,388,496/47,387
  6. Step 6: Final answer
    x = 221,123.69

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.