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Finding the Fourth Proportional to 3,251.84, 4,487.64 and 1,854.50

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Solution

The fourth proportional to 3,251.84, 4,487.64 and 1,854.50 is: 2,559.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,251.84 : 4,487.64 = 1,854.50 : x
  2. Step 2: Convert to fraction form
    3,251.84/4,487.64 = 1,854.50/x
  3. Step 3: Cross multiply
    3,251.84x = 4,487.64 × 1,854.50
  4. Step 4: Simplify right side
    3,251.84x = 8,322,328.38
  5. Step 5: Solve for x
    x = 8,322,328.38/3,251.84
  6. Step 6: Final answer
    x = 2,559.27

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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.