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Finding the Third Proportional to 655.50 and 942.50

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Solution

The third proportional to 655.50 and 942.50 is: 1,355.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.50 : 942.50 = 942.50 : x
  2. Step 2: Convert to fraction form
    655.50/942.50 = 942.50/x
  3. Step 3: Cross multiply
    655.50x = 942.50 × 942.50
  4. Step 4: Simplify right side
    655.50x = 888,306.25
  5. Step 5: Solve for x
    x = 888,306.25/655.50
  6. Step 6: Final answer
    x = 1,355.16

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.