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Finding the Fourth Proportional to 18,549.68, 25,601.16 and 11,833.16

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Solution

The fourth proportional to 18,549.68, 25,601.16 and 11,833.16 is: 16,331.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,549.68 : 25,601.16 = 11,833.16 : x
  2. Step 2: Convert to fraction form
    18,549.68/25,601.16 = 11,833.16/x
  3. Step 3: Cross multiply
    18,549.68x = 25,601.16 × 11,833.16
  4. Step 4: Simplify right side
    18,549.68x = 302,942,622.47
  5. Step 5: Solve for x
    x = 302,942,622.47/18,549.68
  6. Step 6: Final answer
    x = 16,331.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.