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Finding the Third Proportional to 2,947 and 6,637

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Solution

The third proportional to 2,947 and 6,637 is: 14,947.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947 : 6,637 = 6,637 : x
  2. Step 2: Convert to fraction form
    2,947/6,637 = 6,637/x
  3. Step 3: Cross multiply
    2,947x = 6,637 × 6,637
  4. Step 4: Simplify right side
    2,947x = 44,049,769
  5. Step 5: Solve for x
    x = 44,049,769/2,947
  6. Step 6: Final answer
    x = 14,947.33

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Why These Related Problems?

These problems maintain the same ratio (2.25) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.