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Finding the Third Proportional to 993.52 and 2,118.97

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Solution

The third proportional to 993.52 and 2,118.97 is: 4,519.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    993.52 : 2,118.97 = 2,118.97 : x
  2. Step 2: Convert to fraction form
    993.52/2,118.97 = 2,118.97/x
  3. Step 3: Cross multiply
    993.52x = 2,118.97 × 2,118.97
  4. Step 4: Simplify right side
    993.52x = 4,490,045.12
  5. Step 5: Solve for x
    x = 4,490,045.12/993.52
  6. Step 6: Final answer
    x = 4,519.35

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.