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Finding the Fourth Proportional to 29,351.94, 40,505.25 and 15,922.83

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Solution

The fourth proportional to 29,351.94, 40,505.25 and 15,922.83 is: 21,973.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,351.94 : 40,505.25 = 15,922.83 : x
  2. Step 2: Convert to fraction form
    29,351.94/40,505.25 = 15,922.83/x
  3. Step 3: Cross multiply
    29,351.94x = 40,505.25 × 15,922.83
  4. Step 4: Simplify right side
    29,351.94x = 644,958,209.86
  5. Step 5: Solve for x
    x = 644,958,209.86/29,351.94
  6. Step 6: Final answer
    x = 21,973.27

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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.