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Finding the Third Proportional to 961.03 and 2,101.78

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Solution

The third proportional to 961.03 and 2,101.78 is: 4,596.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    961.03 : 2,101.78 = 2,101.78 : x
  2. Step 2: Convert to fraction form
    961.03/2,101.78 = 2,101.78/x
  3. Step 3: Cross multiply
    961.03x = 2,101.78 × 2,101.78
  4. Step 4: Simplify right side
    961.03x = 4,417,484.42
  5. Step 5: Solve for x
    x = 4,417,484.42/961.03
  6. Step 6: Final answer
    x = 4,596.61

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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.