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Finding the Fourth Proportional to 30,472.62, 45,621.42 and 22,521.66

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Solution

The fourth proportional to 30,472.62, 45,621.42 and 22,521.66 is: 33,717.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,472.62 : 45,621.42 = 22,521.66 : x
  2. Step 2: Convert to fraction form
    30,472.62/45,621.42 = 22,521.66/x
  3. Step 3: Cross multiply
    30,472.62x = 45,621.42 × 22,521.66
  4. Step 4: Simplify right side
    30,472.62x = 1,027,470,109.96
  5. Step 5: Solve for x
    x = 1,027,470,109.96/30,472.62
  6. Step 6: Final answer
    x = 33,717.81

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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.