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Finding the Third Proportional to 938.87 and 1,472.75

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Solution

The third proportional to 938.87 and 1,472.75 is: 2,310.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    938.87 : 1,472.75 = 1,472.75 : x
  2. Step 2: Convert to fraction form
    938.87/1,472.75 = 1,472.75/x
  3. Step 3: Cross multiply
    938.87x = 1,472.75 × 1,472.75
  4. Step 4: Simplify right side
    938.87x = 2,168,986.81
  5. Step 5: Solve for x
    x = 2,168,986.81/938.87
  6. Step 6: Final answer
    x = 2,310.22

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.