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Finding the Third Proportional to 1,091.63 and 2,425.13

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Solution

The third proportional to 1,091.63 and 2,425.13 is: 5,387.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091.63 : 2,425.13 = 2,425.13 : x
  2. Step 2: Convert to fraction form
    1,091.63/2,425.13 = 2,425.13/x
  3. Step 3: Cross multiply
    1,091.63x = 2,425.13 × 2,425.13
  4. Step 4: Simplify right side
    1,091.63x = 5,881,231.27
  5. Step 5: Solve for x
    x = 5,881,231.27/1,091.63
  6. Step 6: Final answer
    x = 5,387.59

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.