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Finding the Third Proportional to 2,040.19 and 4,335.40

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Solution

The third proportional to 2,040.19 and 4,335.40 is: 9,212.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.19 : 4,335.40 = 4,335.40 : x
  2. Step 2: Convert to fraction form
    2,040.19/4,335.40 = 4,335.40/x
  3. Step 3: Cross multiply
    2,040.19x = 4,335.40 × 4,335.40
  4. Step 4: Simplify right side
    2,040.19x = 18,795,679.61
  5. Step 5: Solve for x
    x = 18,795,679.61/2,040.19
  6. Step 6: Final answer
    x = 9,212.72

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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.