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Finding the Fourth Proportional to 3,298.94, 4,949.78 and 1,542.66

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Solution

The fourth proportional to 3,298.94, 4,949.78 and 1,542.66 is: 2,314.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,298.94 : 4,949.78 = 1,542.66 : x
  2. Step 2: Convert to fraction form
    3,298.94/4,949.78 = 1,542.66/x
  3. Step 3: Cross multiply
    3,298.94x = 4,949.78 × 1,542.66
  4. Step 4: Simplify right side
    3,298.94x = 7,635,827.61
  5. Step 5: Solve for x
    x = 7,635,827.61/3,298.94
  6. Step 6: Final answer
    x = 2,314.63

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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.