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Finding the Fourth Proportional to 5,793.60, 7,995.20 and 3,140.99

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Solution

The fourth proportional to 5,793.60, 7,995.20 and 3,140.99 is: 4,334.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,793.60 : 7,995.20 = 3,140.99 : x
  2. Step 2: Convert to fraction form
    5,793.60/7,995.20 = 3,140.99/x
  3. Step 3: Cross multiply
    5,793.60x = 7,995.20 × 3,140.99
  4. Step 4: Simplify right side
    5,793.60x = 25,112,843.25
  5. Step 5: Solve for x
    x = 25,112,843.25/5,793.60
  6. Step 6: Final answer
    x = 4,334.58

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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.