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Finding the Third Proportional to 2,470 and 3,778

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Solution

The third proportional to 2,470 and 3,778 is: 5,778.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,470 : 3,778 = 3,778 : x
  2. Step 2: Convert to fraction form
    2,470/3,778 = 3,778/x
  3. Step 3: Cross multiply
    2,470x = 3,778 × 3,778
  4. Step 4: Simplify right side
    2,470x = 14,273,284
  5. Step 5: Solve for x
    x = 14,273,284/2,470
  6. Step 6: Final answer
    x = 5,778.66

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.