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Finding the Fourth Proportional to 3,494.76, 4,822.80 and 2,149.98

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Solution

The fourth proportional to 3,494.76, 4,822.80 and 2,149.98 is: 2,966.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,494.76 : 4,822.80 = 2,149.98 : x
  2. Step 2: Convert to fraction form
    3,494.76/4,822.80 = 2,149.98/x
  3. Step 3: Cross multiply
    3,494.76x = 4,822.80 × 2,149.98
  4. Step 4: Simplify right side
    3,494.76x = 10,368,923.54
  5. Step 5: Solve for x
    x = 10,368,923.54/3,494.76
  6. Step 6: Final answer
    x = 2,966.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.