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Finding the Fourth Proportional to 38,379.84, 52,979.04 and 29,999.04

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Solution

The fourth proportional to 38,379.84, 52,979.04 and 29,999.04 is: 41,410.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,379.84 : 52,979.04 = 29,999.04 : x
  2. Step 2: Convert to fraction form
    38,379.84/52,979.04 = 29,999.04/x
  3. Step 3: Cross multiply
    38,379.84x = 52,979.04 × 29,999.04
  4. Step 4: Simplify right side
    38,379.84x = 1,589,320,340.12
  5. Step 5: Solve for x
    x = 1,589,320,340.12/38,379.84
  6. Step 6: Final answer
    x = 41,410.29

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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.