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Finding the Third Proportional to 2,006.65 and 2,905.56

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Solution

The third proportional to 2,006.65 and 2,905.56 is: 4,207.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,006.65 : 2,905.56 = 2,905.56 : x
  2. Step 2: Convert to fraction form
    2,006.65/2,905.56 = 2,905.56/x
  3. Step 3: Cross multiply
    2,006.65x = 2,905.56 × 2,905.56
  4. Step 4: Simplify right side
    2,006.65x = 8,442,270.74
  5. Step 5: Solve for x
    x = 8,442,270.74/2,006.65
  6. Step 6: Final answer
    x = 4,207.15

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.