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Finding the Third Proportional to 2,310 and 3,780

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Solution

The third proportional to 2,310 and 3,780 is: 6,185.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310 : 3,780 = 3,780 : x
  2. Step 2: Convert to fraction form
    2,310/3,780 = 3,780/x
  3. Step 3: Cross multiply
    2,310x = 3,780 × 3,780
  4. Step 4: Simplify right side
    2,310x = 14,288,400
  5. Step 5: Solve for x
    x = 14,288,400/2,310
  6. Step 6: Final answer
    x = 6,185.45

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.