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Finding the Third Proportional to 565.50 and 876.75

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Solution

The third proportional to 565.50 and 876.75 is: 1,359.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    565.50 : 876.75 = 876.75 : x
  2. Step 2: Convert to fraction form
    565.50/876.75 = 876.75/x
  3. Step 3: Cross multiply
    565.50x = 876.75 × 876.75
  4. Step 4: Simplify right side
    565.50x = 768,690.56
  5. Step 5: Solve for x
    x = 768,690.56/565.50
  6. Step 6: Final answer
    x = 1,359.31

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.