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Finding the Fourth Proportional to 29,135.80, 43,674.90 and 11,582.20

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Solution

The fourth proportional to 29,135.80, 43,674.90 and 11,582.20 is: 17,361.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,135.80 : 43,674.90 = 11,582.20 : x
  2. Step 2: Convert to fraction form
    29,135.80/43,674.90 = 11,582.20/x
  3. Step 3: Cross multiply
    29,135.80x = 43,674.90 × 11,582.20
  4. Step 4: Simplify right side
    29,135.80x = 505,851,426.78
  5. Step 5: Solve for x
    x = 505,851,426.78/29,135.80
  6. Step 6: Final answer
    x = 17,361.85

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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.