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Finding the Fourth Proportional to 3,326.66, 4,991.93 and 1,248.12

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Solution

The fourth proportional to 3,326.66, 4,991.93 and 1,248.12 is: 1,872.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,326.66 : 4,991.93 = 1,248.12 : x
  2. Step 2: Convert to fraction form
    3,326.66/4,991.93 = 1,248.12/x
  3. Step 3: Cross multiply
    3,326.66x = 4,991.93 × 1,248.12
  4. Step 4: Simplify right side
    3,326.66x = 6,230,527.67
  5. Step 5: Solve for x
    x = 6,230,527.67/3,326.66
  6. Step 6: Final answer
    x = 1,872.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.