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Finding the Third Proportional to 632 and 858.50

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Solution

The third proportional to 632 and 858.50 is: 1,166.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    632 : 858.50 = 858.50 : x
  2. Step 2: Convert to fraction form
    632/858.50 = 858.50/x
  3. Step 3: Cross multiply
    632x = 858.50 × 858.50
  4. Step 4: Simplify right side
    632x = 737,022.25
  5. Step 5: Solve for x
    x = 737,022.25/632
  6. Step 6: Final answer
    x = 1,166.17

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.