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Finding the Third Proportional to 717.19 and 1,567.69

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Solution

The third proportional to 717.19 and 1,567.69 is: 3,426.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    717.19 : 1,567.69 = 1,567.69 : x
  2. Step 2: Convert to fraction form
    717.19/1,567.69 = 1,567.69/x
  3. Step 3: Cross multiply
    717.19x = 1,567.69 × 1,567.69
  4. Step 4: Simplify right side
    717.19x = 2,457,644.10
  5. Step 5: Solve for x
    x = 2,457,644.10/717.19
  6. Step 6: Final answer
    x = 3,426.78

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.