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Finding the Fourth Proportional to 29,658.80, 44,449.32 and 12,108.54

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Solution

The fourth proportional to 29,658.80, 44,449.32 and 12,108.54 is: 18,146.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,658.80 : 44,449.32 = 12,108.54 : x
  2. Step 2: Convert to fraction form
    29,658.80/44,449.32 = 12,108.54/x
  3. Step 3: Cross multiply
    29,658.80x = 44,449.32 × 12,108.54
  4. Step 4: Simplify right side
    29,658.80x = 538,216,369.19
  5. Step 5: Solve for x
    x = 538,216,369.19/29,658.80
  6. Step 6: Final answer
    x = 18,146.94

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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.