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Finding the Fourth Proportional to 3,888.19, 5,826.16 and 2,425.15

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Solution

The fourth proportional to 3,888.19, 5,826.16 and 2,425.15 is: 3,633.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.19 : 5,826.16 = 2,425.15 : x
  2. Step 2: Convert to fraction form
    3,888.19/5,826.16 = 2,425.15/x
  3. Step 3: Cross multiply
    3,888.19x = 5,826.16 × 2,425.15
  4. Step 4: Simplify right side
    3,888.19x = 14,129,311.92
  5. Step 5: Solve for x
    x = 14,129,311.92/3,888.19
  6. Step 6: Final answer
    x = 3,633.90

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1.5x scale

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.