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Finding the Third Proportional to 938 and 1,459

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Solution

The third proportional to 938 and 1,459 is: 2,269.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    938 : 1,459 = 1,459 : x
  2. Step 2: Convert to fraction form
    938/1,459 = 1,459/x
  3. Step 3: Cross multiply
    938x = 1,459 × 1,459
  4. Step 4: Simplify right side
    938x = 2,128,681
  5. Step 5: Solve for x
    x = 2,128,681/938
  6. Step 6: Final answer
    x = 2,269.38

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.