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Finding the Fourth Proportional to 29,467.62, 44,079.93 and 18,921.42

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Solution

The fourth proportional to 29,467.62, 44,079.93 and 18,921.42 is: 28,304.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,467.62 : 44,079.93 = 18,921.42 : x
  2. Step 2: Convert to fraction form
    29,467.62/44,079.93 = 18,921.42/x
  3. Step 3: Cross multiply
    29,467.62x = 44,079.93 × 18,921.42
  4. Step 4: Simplify right side
    29,467.62x = 834,054,869.10
  5. Step 5: Solve for x
    x = 834,054,869.10/29,467.62
  6. Step 6: Final answer
    x = 28,304.11

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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.