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Finding the Fourth Proportional to 7,025.40, 10,540.22 and 2,095.20

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Solution

The fourth proportional to 7,025.40, 10,540.22 and 2,095.20 is: 3,143.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,025.40 : 10,540.22 = 2,095.20 : x
  2. Step 2: Convert to fraction form
    7,025.40/10,540.22 = 2,095.20/x
  3. Step 3: Cross multiply
    7,025.40x = 10,540.22 × 2,095.20
  4. Step 4: Simplify right side
    7,025.40x = 22,083,858.47
  5. Step 5: Solve for x
    x = 22,083,858.47/7,025.40
  6. Step 6: Final answer
    x = 3,143.43

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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.