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Finding the Fourth Proportional to 32,720.52, 49,083.90 and 11,939.08

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Solution

The fourth proportional to 32,720.52, 49,083.90 and 11,939.08 is: 17,909.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,720.52 : 49,083.90 = 11,939.08 : x
  2. Step 2: Convert to fraction form
    32,720.52/49,083.90 = 11,939.08/x
  3. Step 3: Cross multiply
    32,720.52x = 49,083.90 × 11,939.08
  4. Step 4: Simplify right side
    32,720.52x = 586,016,608.81
  5. Step 5: Solve for x
    x = 586,016,608.81/32,720.52
  6. Step 6: Final answer
    x = 17,909.76

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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.