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Finding the Third Proportional to 9,478 and 15,756

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Solution

The third proportional to 9,478 and 15,756 is: 26,192.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,478 : 15,756 = 15,756 : x
  2. Step 2: Convert to fraction form
    9,478/15,756 = 15,756/x
  3. Step 3: Cross multiply
    9,478x = 15,756 × 15,756
  4. Step 4: Simplify right side
    9,478x = 248,251,536
  5. Step 5: Solve for x
    x = 248,251,536/9,478
  6. Step 6: Final answer
    x = 26,192.40

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.