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Finding the Fourth Proportional to 18,246.59, 25,180.30 and 9,863.09

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Solution

The fourth proportional to 18,246.59, 25,180.30 and 9,863.09 is: 13,611.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,246.59 : 25,180.30 = 9,863.09 : x
  2. Step 2: Convert to fraction form
    18,246.59/25,180.30 = 9,863.09/x
  3. Step 3: Cross multiply
    18,246.59x = 25,180.30 × 9,863.09
  4. Step 4: Simplify right side
    18,246.59x = 248,355,565.13
  5. Step 5: Solve for x
    x = 248,355,565.13/18,246.59
  6. Step 6: Final answer
    x = 13,611.07

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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.