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Finding the Third Proportional to 913.50 and 1,372.50

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Solution

The third proportional to 913.50 and 1,372.50 is: 2,062.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    913.50 : 1,372.50 = 1,372.50 : x
  2. Step 2: Convert to fraction form
    913.50/1,372.50 = 1,372.50/x
  3. Step 3: Cross multiply
    913.50x = 1,372.50 × 1,372.50
  4. Step 4: Simplify right side
    913.50x = 1,883,756.25
  5. Step 5: Solve for x
    x = 1,883,756.25/913.50
  6. Step 6: Final answer
    x = 2,062.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.