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Finding the Fourth Proportional to 18,565.28, 27,813.04 and 9,194.40

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Solution

The fourth proportional to 18,565.28, 27,813.04 and 9,194.40 is: 13,774.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,565.28 : 27,813.04 = 9,194.40 : x
  2. Step 2: Convert to fraction form
    18,565.28/27,813.04 = 9,194.40/x
  3. Step 3: Cross multiply
    18,565.28x = 27,813.04 × 9,194.40
  4. Step 4: Simplify right side
    18,565.28x = 255,724,214.98
  5. Step 5: Solve for x
    x = 255,724,214.98/18,565.28
  6. Step 6: Final answer
    x = 13,774.33

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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.