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Finding the Third Proportional to 3,154 and 4,937

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Solution

The third proportional to 3,154 and 4,937 is: 7,727.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154 : 4,937 = 4,937 : x
  2. Step 2: Convert to fraction form
    3,154/4,937 = 4,937/x
  3. Step 3: Cross multiply
    3,154x = 4,937 × 4,937
  4. Step 4: Simplify right side
    3,154x = 24,373,969
  5. Step 5: Solve for x
    x = 24,373,969/3,154
  6. Step 6: Final answer
    x = 7,727.95

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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.