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Finding the Fourth Proportional to 22,838.72, 34,202.16 and 18,865.67

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Solution

The fourth proportional to 22,838.72, 34,202.16 and 18,865.67 is: 28,252.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,838.72 : 34,202.16 = 18,865.67 : x
  2. Step 2: Convert to fraction form
    22,838.72/34,202.16 = 18,865.67/x
  3. Step 3: Cross multiply
    22,838.72x = 34,202.16 × 18,865.67
  4. Step 4: Simplify right side
    22,838.72x = 645,246,492.84
  5. Step 5: Solve for x
    x = 645,246,492.84/22,838.72
  6. Step 6: Final answer
    x = 28,252.31

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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.