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Finding the Third Proportional to 7,440.19 and 15,148.69

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Solution

The third proportional to 7,440.19 and 15,148.69 is: 30,843.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,440.19 : 15,148.69 = 15,148.69 : x
  2. Step 2: Convert to fraction form
    7,440.19/15,148.69 = 15,148.69/x
  3. Step 3: Cross multiply
    7,440.19x = 15,148.69 × 15,148.69
  4. Step 4: Simplify right side
    7,440.19x = 229,482,732.97
  5. Step 5: Solve for x
    x = 229,482,732.97/7,440.19
  6. Step 6: Final answer
    x = 30,843.68

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.