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Finding the Fourth Proportional to 29,163.60, 43,750.80 and 9,442.80

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Solution

The fourth proportional to 29,163.60, 43,750.80 and 9,442.80 is: 14,165.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,163.60 : 43,750.80 = 9,442.80 : x
  2. Step 2: Convert to fraction form
    29,163.60/43,750.80 = 9,442.80/x
  3. Step 3: Cross multiply
    29,163.60x = 43,750.80 × 9,442.80
  4. Step 4: Simplify right side
    29,163.60x = 413,130,054.24
  5. Step 5: Solve for x
    x = 413,130,054.24/29,163.60
  6. Step 6: Final answer
    x = 14,165.95

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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.