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Finding the Fourth Proportional to 29,390.83, 40,559.22 and 15,961.99

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Solution

The fourth proportional to 29,390.83, 40,559.22 and 15,961.99 is: 22,027.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,390.83 : 40,559.22 = 15,961.99 : x
  2. Step 2: Convert to fraction form
    29,390.83/40,559.22 = 15,961.99/x
  3. Step 3: Cross multiply
    29,390.83x = 40,559.22 × 15,961.99
  4. Step 4: Simplify right side
    29,390.83x = 647,405,864.05
  5. Step 5: Solve for x
    x = 647,405,864.05/29,390.83
  6. Step 6: Final answer
    x = 22,027.48

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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.