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Finding the Fourth Proportional to 5,868.24, 8,790.12 and 3,520.80

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Solution

The fourth proportional to 5,868.24, 8,790.12 and 3,520.80 is: 5,273.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,868.24 : 8,790.12 = 3,520.80 : x
  2. Step 2: Convert to fraction form
    5,868.24/8,790.12 = 3,520.80/x
  3. Step 3: Cross multiply
    5,868.24x = 8,790.12 × 3,520.80
  4. Step 4: Simplify right side
    5,868.24x = 30,948,254.50
  5. Step 5: Solve for x
    x = 30,948,254.50/5,868.24
  6. Step 6: Final answer
    x = 5,273.86

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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.