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Finding the Third Proportional to 7,345.69 and 15,891.19

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Solution

The third proportional to 7,345.69 and 15,891.19 is: 34,377.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345.69 : 15,891.19 = 15,891.19 : x
  2. Step 2: Convert to fraction form
    7,345.69/15,891.19 = 15,891.19/x
  3. Step 3: Cross multiply
    7,345.69x = 15,891.19 × 15,891.19
  4. Step 4: Simplify right side
    7,345.69x = 252,529,840.16
  5. Step 5: Solve for x
    x = 252,529,840.16/7,345.69
  6. Step 6: Final answer
    x = 34,377.97

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.