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Finding the Fourth Proportional to 18,390.08, 27,584.64 and 5,910.08

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Solution

The fourth proportional to 18,390.08, 27,584.64 and 5,910.08 is: 8,864.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390.08 : 27,584.64 = 5,910.08 : x
  2. Step 2: Convert to fraction form
    18,390.08/27,584.64 = 5,910.08/x
  3. Step 3: Cross multiply
    18,390.08x = 27,584.64 × 5,910.08
  4. Step 4: Simplify right side
    18,390.08x = 163,027,429.17
  5. Step 5: Solve for x
    x = 163,027,429.17/18,390.08
  6. Step 6: Final answer
    x = 8,864.97

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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.