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Finding the Third Proportional to 2,442 and 3,865

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Solution

The third proportional to 2,442 and 3,865 is: 6,117.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,442 : 3,865 = 3,865 : x
  2. Step 2: Convert to fraction form
    2,442/3,865 = 3,865/x
  3. Step 3: Cross multiply
    2,442x = 3,865 × 3,865
  4. Step 4: Simplify right side
    2,442x = 14,938,225
  5. Step 5: Solve for x
    x = 14,938,225/2,442
  6. Step 6: Final answer
    x = 6,117.21

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.