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Finding the Third Proportional to 651.75 and 922.88

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Solution

The third proportional to 651.75 and 922.88 is: 1,306.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.75 : 922.88 = 922.88 : x
  2. Step 2: Convert to fraction form
    651.75/922.88 = 922.88/x
  3. Step 3: Cross multiply
    651.75x = 922.88 × 922.88
  4. Step 4: Simplify right side
    651.75x = 851,698.27
  5. Step 5: Solve for x
    x = 851,698.27/651.75
  6. Step 6: Final answer
    x = 1,306.79

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.