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Finding the Third Proportional to 2,431.13 and 4,340.81

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Solution

The third proportional to 2,431.13 and 4,340.81 is: 7,750.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.13 : 4,340.81 = 4,340.81 : x
  2. Step 2: Convert to fraction form
    2,431.13/4,340.81 = 4,340.81/x
  3. Step 3: Cross multiply
    2,431.13x = 4,340.81 × 4,340.81
  4. Step 4: Simplify right side
    2,431.13x = 18,842,653.16
  5. Step 5: Solve for x
    x = 18,842,653.16/2,431.13
  6. Step 6: Final answer
    x = 7,750.59

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Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.