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Finding the Fourth Proportional to 5,747.60, 8,604.60 and 4,293.20

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Solution

The fourth proportional to 5,747.60, 8,604.60 and 4,293.20 is: 6,427.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,747.60 : 8,604.60 = 4,293.20 : x
  2. Step 2: Convert to fraction form
    5,747.60/8,604.60 = 4,293.20/x
  3. Step 3: Cross multiply
    5,747.60x = 8,604.60 × 4,293.20
  4. Step 4: Simplify right side
    5,747.60x = 36,941,268.72
  5. Step 5: Solve for x
    x = 36,941,268.72/5,747.60
  6. Step 6: Final answer
    x = 6,427.25

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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.