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Finding the Fourth Proportional to 29,039.52, 43,559.37 and 7,979.88

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Solution

The fourth proportional to 29,039.52, 43,559.37 and 7,979.88 is: 11,969.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,039.52 : 43,559.37 = 7,979.88 : x
  2. Step 2: Convert to fraction form
    29,039.52/43,559.37 = 7,979.88/x
  3. Step 3: Cross multiply
    29,039.52x = 43,559.37 × 7,979.88
  4. Step 4: Simplify right side
    29,039.52x = 347,598,545.48
  5. Step 5: Solve for x
    x = 347,598,545.48/29,039.52
  6. Step 6: Final answer
    x = 11,969.84

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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.