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Finding the Fourth Proportional to 3,381.99, 4,667.12 and 1,869.54

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Solution

The fourth proportional to 3,381.99, 4,667.12 and 1,869.54 is: 2,579.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,381.99 : 4,667.12 = 1,869.54 : x
  2. Step 2: Convert to fraction form
    3,381.99/4,667.12 = 1,869.54/x
  3. Step 3: Cross multiply
    3,381.99x = 4,667.12 × 1,869.54
  4. Step 4: Simplify right side
    3,381.99x = 8,725,382.69
  5. Step 5: Solve for x
    x = 8,725,382.69/3,381.99
  6. Step 6: Final answer
    x = 2,579.95

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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.