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Finding the Third Proportional to 2,891.81 and 4,330.13

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Solution

The third proportional to 2,891.81 and 4,330.13 is: 6,483.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891.81 : 4,330.13 = 4,330.13 : x
  2. Step 2: Convert to fraction form
    2,891.81/4,330.13 = 4,330.13/x
  3. Step 3: Cross multiply
    2,891.81x = 4,330.13 × 4,330.13
  4. Step 4: Simplify right side
    2,891.81x = 18,749,982.52
  5. Step 5: Solve for x
    x = 18,749,982.52/2,891.81
  6. Step 6: Final answer
    x = 6,483.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.