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Finding the Fourth Proportional to 7,059.60, 10,589.80 and 2,379.20

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Solution

The fourth proportional to 7,059.60, 10,589.80 and 2,379.20 is: 3,568.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,059.60 : 10,589.80 = 2,379.20 : x
  2. Step 2: Convert to fraction form
    7,059.60/10,589.80 = 2,379.20/x
  3. Step 3: Cross multiply
    7,059.60x = 10,589.80 × 2,379.20
  4. Step 4: Simplify right side
    7,059.60x = 25,195,252.16
  5. Step 5: Solve for x
    x = 25,195,252.16/7,059.60
  6. Step 6: Final answer
    x = 3,568.93

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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.