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Finding the Fourth Proportional to 12,025.21, 18,035.06 and 5,358.20

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Solution

The fourth proportional to 12,025.21, 18,035.06 and 5,358.20 is: 8,036.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,025.21 : 18,035.06 = 5,358.20 : x
  2. Step 2: Convert to fraction form
    12,025.21/18,035.06 = 5,358.20/x
  3. Step 3: Cross multiply
    12,025.21x = 18,035.06 × 5,358.20
  4. Step 4: Simplify right side
    12,025.21x = 96,635,442.97
  5. Step 5: Solve for x
    x = 96,635,442.97/12,025.21
  6. Step 6: Final answer
    x = 8,036.07

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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.