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Finding the Fourth Proportional to 18,594.72, 27,855.28 and 11,201.12

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Solution

The fourth proportional to 18,594.72, 27,855.28 and 11,201.12 is: 16,779.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,594.72 : 27,855.28 = 11,201.12 : x
  2. Step 2: Convert to fraction form
    18,594.72/27,855.28 = 11,201.12/x
  3. Step 3: Cross multiply
    18,594.72x = 27,855.28 × 11,201.12
  4. Step 4: Simplify right side
    18,594.72x = 312,010,333.91
  5. Step 5: Solve for x
    x = 312,010,333.91/18,594.72
  6. Step 6: Final answer
    x = 16,779.51

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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.