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Finding the Third Proportional to 1,140.75 and 2,475

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Solution

The third proportional to 1,140.75 and 2,475 is: 5,369.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140.75 : 2,475 = 2,475 : x
  2. Step 2: Convert to fraction form
    1,140.75/2,475 = 2,475/x
  3. Step 3: Cross multiply
    1,140.75x = 2,475 × 2,475
  4. Step 4: Simplify right side
    1,140.75x = 6,125,625
  5. Step 5: Solve for x
    x = 6,125,625/1,140.75
  6. Step 6: Final answer
    x = 5,369.82

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.