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Finding the Third Proportional to 8,947 and 19,432

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Solution

The third proportional to 8,947 and 19,432 is: 42,204.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,947 : 19,432 = 19,432 : x
  2. Step 2: Convert to fraction form
    8,947/19,432 = 19,432/x
  3. Step 3: Cross multiply
    8,947x = 19,432 × 19,432
  4. Step 4: Simplify right side
    8,947x = 377,602,624
  5. Step 5: Solve for x
    x = 377,602,624/8,947
  6. Step 6: Final answer
    x = 42,204.38

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.