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Finding the Third Proportional to 1,117 and 2,450

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Solution

The third proportional to 1,117 and 2,450 is: 5,373.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117 : 2,450 = 2,450 : x
  2. Step 2: Convert to fraction form
    1,117/2,450 = 2,450/x
  3. Step 3: Cross multiply
    1,117x = 2,450 × 2,450
  4. Step 4: Simplify right side
    1,117x = 6,002,500
  5. Step 5: Solve for x
    x = 6,002,500/1,117
  6. Step 6: Final answer
    x = 5,373.77

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.