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Finding the Fourth Proportional to 7,324.20, 10,986.30 and 2,059.20

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Solution

The fourth proportional to 7,324.20, 10,986.30 and 2,059.20 is: 3,088.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,324.20 : 10,986.30 = 2,059.20 : x
  2. Step 2: Convert to fraction form
    7,324.20/10,986.30 = 2,059.20/x
  3. Step 3: Cross multiply
    7,324.20x = 10,986.30 × 2,059.20
  4. Step 4: Simplify right side
    7,324.20x = 22,622,988.96
  5. Step 5: Solve for x
    x = 22,622,988.96/7,324.20
  6. Step 6: Final answer
    x = 3,088.80

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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.