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Finding the Fourth Proportional to 18,305.65, 27,458.48 and 15,833.13

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Solution

The fourth proportional to 18,305.65, 27,458.48 and 15,833.13 is: 23,749.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,305.65 : 27,458.48 = 15,833.13 : x
  2. Step 2: Convert to fraction form
    18,305.65/27,458.48 = 15,833.13/x
  3. Step 3: Cross multiply
    18,305.65x = 27,458.48 × 15,833.13
  4. Step 4: Simplify right side
    18,305.65x = 434,753,466.98
  5. Step 5: Solve for x
    x = 434,753,466.98/18,305.65
  6. Step 6: Final answer
    x = 23,749.69

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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.