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Finding the Fourth Proportional to 7,991.55, 11,025 and 4,760.73

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Solution

The fourth proportional to 7,991.55, 11,025 and 4,760.73 is: 6,567.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,991.55 : 11,025 = 4,760.73 : x
  2. Step 2: Convert to fraction form
    7,991.55/11,025 = 4,760.73/x
  3. Step 3: Cross multiply
    7,991.55x = 11,025 × 4,760.73
  4. Step 4: Simplify right side
    7,991.55x = 52,487,048.25
  5. Step 5: Solve for x
    x = 52,487,048.25/7,991.55
  6. Step 6: Final answer
    x = 6,567.82

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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.