Home / 29,789.52-41,128.80-18,471.04

Finding the Fourth Proportional to 29,789.52, 41,128.80 and 18,471.04

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Solution

The fourth proportional to 29,789.52, 41,128.80 and 18,471.04 is: 25,501.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,789.52 : 41,128.80 = 18,471.04 : x
  2. Step 2: Convert to fraction form
    29,789.52/41,128.80 = 18,471.04/x
  3. Step 3: Cross multiply
    29,789.52x = 41,128.80 × 18,471.04
  4. Step 4: Simplify right side
    29,789.52x = 759,691,709.95
  5. Step 5: Solve for x
    x = 759,691,709.95/29,789.52
  6. Step 6: Final answer
    x = 25,501.98

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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.