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Finding the Fourth Proportional to 12,251.99, 18,322.61 and 9,440.48

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Solution

The fourth proportional to 12,251.99, 18,322.61 and 9,440.48 is: 14,118.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251.99 : 18,322.61 = 9,440.48 : x
  2. Step 2: Convert to fraction form
    12,251.99/18,322.61 = 9,440.48/x
  3. Step 3: Cross multiply
    12,251.99x = 18,322.61 × 9,440.48
  4. Step 4: Simplify right side
    12,251.99x = 172,974,094.44
  5. Step 5: Solve for x
    x = 172,974,094.44/12,251.99
  6. Step 6: Final answer
    x = 14,118.05

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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.