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Finding the Fourth Proportional to 29,799.48, 41,107.86 and 20,239.86

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Solution

The fourth proportional to 29,799.48, 41,107.86 and 20,239.86 is: 27,920.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,799.48 : 41,107.86 = 20,239.86 : x
  2. Step 2: Convert to fraction form
    29,799.48/41,107.86 = 20,239.86/x
  3. Step 3: Cross multiply
    29,799.48x = 41,107.86 × 20,239.86
  4. Step 4: Simplify right side
    29,799.48x = 832,017,331.30
  5. Step 5: Solve for x
    x = 832,017,331.30/29,799.48
  6. Step 6: Final answer
    x = 27,920.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.