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Finding the Fourth Proportional to 29,054.61, 43,589.20 and 8,278.11

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Solution

The fourth proportional to 29,054.61, 43,589.20 and 8,278.11 is: 12,419.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,054.61 : 43,589.20 = 8,278.11 : x
  2. Step 2: Convert to fraction form
    29,054.61/43,589.20 = 8,278.11/x
  3. Step 3: Cross multiply
    29,054.61x = 43,589.20 × 8,278.11
  4. Step 4: Simplify right side
    29,054.61x = 360,836,192.41
  5. Step 5: Solve for x
    x = 360,836,192.41/29,054.61
  6. Step 6: Final answer
    x = 12,419.24

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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.