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Finding the Fourth Proportional to 5,760.82, 8,639.10 and 4,530.64

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Solution

The fourth proportional to 5,760.82, 8,639.10 and 4,530.64 is: 6,794.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,760.82 : 8,639.10 = 4,530.64 : x
  2. Step 2: Convert to fraction form
    5,760.82/8,639.10 = 4,530.64/x
  3. Step 3: Cross multiply
    5,760.82x = 8,639.10 × 4,530.64
  4. Step 4: Simplify right side
    5,760.82x = 39,140,652.02
  5. Step 5: Solve for x
    x = 39,140,652.02/5,760.82
  6. Step 6: Final answer
    x = 6,794.28

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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.