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Finding the Fourth Proportional to 18,041.43, 27,052.02 and 12,425.70

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Solution

The fourth proportional to 18,041.43, 27,052.02 and 12,425.70 is: 18,631.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,041.43 : 27,052.02 = 12,425.70 : x
  2. Step 2: Convert to fraction form
    18,041.43/27,052.02 = 12,425.70/x
  3. Step 3: Cross multiply
    18,041.43x = 27,052.02 × 12,425.70
  4. Step 4: Simplify right side
    18,041.43x = 336,140,284.91
  5. Step 5: Solve for x
    x = 336,140,284.91/18,041.43
  6. Step 6: Final answer
    x = 18,631.58

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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.