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Finding the Third Proportional to 2,998.13 and 4,385.81

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Solution

The third proportional to 2,998.13 and 4,385.81 is: 6,415.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998.13 : 4,385.81 = 4,385.81 : x
  2. Step 2: Convert to fraction form
    2,998.13/4,385.81 = 4,385.81/x
  3. Step 3: Cross multiply
    2,998.13x = 4,385.81 × 4,385.81
  4. Step 4: Simplify right side
    2,998.13x = 19,235,351.29
  5. Step 5: Solve for x
    x = 19,235,351.29/2,998.13
  6. Step 6: Final answer
    x = 6,415.79

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.