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Finding the Fourth Proportional to 22,025.80, 32,971.20 and 12,134.80

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Solution

The fourth proportional to 22,025.80, 32,971.20 and 12,134.80 is: 18,165.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,025.80 : 32,971.20 = 12,134.80 : x
  2. Step 2: Convert to fraction form
    22,025.80/32,971.20 = 12,134.80/x
  3. Step 3: Cross multiply
    22,025.80x = 32,971.20 × 12,134.80
  4. Step 4: Simplify right side
    22,025.80x = 400,098,917.76
  5. Step 5: Solve for x
    x = 400,098,917.76/22,025.80
  6. Step 6: Final answer
    x = 18,165.01

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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.