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Finding the Fourth Proportional to 29,591.42, 40,809.11 and 23,131.91

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Solution

The fourth proportional to 29,591.42, 40,809.11 and 23,131.91 is: 31,900.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,591.42 : 40,809.11 = 23,131.91 : x
  2. Step 2: Convert to fraction form
    29,591.42/40,809.11 = 23,131.91/x
  3. Step 3: Cross multiply
    29,591.42x = 40,809.11 × 23,131.91
  4. Step 4: Simplify right side
    29,591.42x = 943,992,340.00
  5. Step 5: Solve for x
    x = 943,992,340.00/29,591.42
  6. Step 6: Final answer
    x = 31,900.89

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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.