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Finding the Third Proportional to 651 and 925.75

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Solution

The third proportional to 651 and 925.75 is: 1,316.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    651 : 925.75 = 925.75 : x
  2. Step 2: Convert to fraction form
    651/925.75 = 925.75/x
  3. Step 3: Cross multiply
    651x = 925.75 × 925.75
  4. Step 4: Simplify right side
    651x = 857,013.06
  5. Step 5: Solve for x
    x = 857,013.06/651
  6. Step 6: Final answer
    x = 1,316.46

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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.