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Finding the Third Proportional to 3,870 and 6,074

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Solution

The third proportional to 3,870 and 6,074 is: 9,533.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870 : 6,074 = 6,074 : x
  2. Step 2: Convert to fraction form
    3,870/6,074 = 6,074/x
  3. Step 3: Cross multiply
    3,870x = 6,074 × 6,074
  4. Step 4: Simplify right side
    3,870x = 36,893,476
  5. Step 5: Solve for x
    x = 36,893,476/3,870
  6. Step 6: Final answer
    x = 9,533.20

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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.