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Finding the Third Proportional to 1,931 and 4,475

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Solution

The third proportional to 1,931 and 4,475 is: 10,370.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931 : 4,475 = 4,475 : x
  2. Step 2: Convert to fraction form
    1,931/4,475 = 4,475/x
  3. Step 3: Cross multiply
    1,931x = 4,475 × 4,475
  4. Step 4: Simplify right side
    1,931x = 20,025,625
  5. Step 5: Solve for x
    x = 20,025,625/1,931
  6. Step 6: Final answer
    x = 10,370.60

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.