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Finding the Third Proportional to 725 and 948.50

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Solution

The third proportional to 725 and 948.50 is: 1,240.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    725 : 948.50 = 948.50 : x
  2. Step 2: Convert to fraction form
    725/948.50 = 948.50/x
  3. Step 3: Cross multiply
    725x = 948.50 × 948.50
  4. Step 4: Simplify right side
    725x = 899,652.25
  5. Step 5: Solve for x
    x = 899,652.25/725
  6. Step 6: Final answer
    x = 1,240.90

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.