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Finding the Third Proportional to 2,331 and 2,947.50

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Solution

The third proportional to 2,331 and 2,947.50 is: 3,727.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331 : 2,947.50 = 2,947.50 : x
  2. Step 2: Convert to fraction form
    2,331/2,947.50 = 2,947.50/x
  3. Step 3: Cross multiply
    2,331x = 2,947.50 × 2,947.50
  4. Step 4: Simplify right side
    2,331x = 8,687,756.25
  5. Step 5: Solve for x
    x = 8,687,756.25/2,331
  6. Step 6: Final answer
    x = 3,727.05

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Why These Related Problems?

These problems maintain the same ratio (1.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.