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Finding the Fourth Proportional to 5,751.42, 8,626.96 and 1,591.68

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Solution

The fourth proportional to 5,751.42, 8,626.96 and 1,591.68 is: 2,387.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,751.42 : 8,626.96 = 1,591.68 : x
  2. Step 2: Convert to fraction form
    5,751.42/8,626.96 = 1,591.68/x
  3. Step 3: Cross multiply
    5,751.42x = 8,626.96 × 1,591.68
  4. Step 4: Simplify right side
    5,751.42x = 13,731,359.69
  5. Step 5: Solve for x
    x = 13,731,359.69/5,751.42
  6. Step 6: Final answer
    x = 2,387.47

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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.