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Finding the Third Proportional to 4,988 and 11,854

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Solution

The third proportional to 4,988 and 11,854 is: 28,171.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,988 : 11,854 = 11,854 : x
  2. Step 2: Convert to fraction form
    4,988/11,854 = 11,854/x
  3. Step 3: Cross multiply
    4,988x = 11,854 × 11,854
  4. Step 4: Simplify right side
    4,988x = 140,517,316
  5. Step 5: Solve for x
    x = 140,517,316/4,988
  6. Step 6: Final answer
    x = 28,171.07

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Why These Related Problems?

These problems maintain the same ratio (2.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.