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Finding the Fourth Proportional to 15,168.48, 22,722 and 7,371.36

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Solution

The fourth proportional to 15,168.48, 22,722 and 7,371.36 is: 11,042.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,168.48 : 22,722 = 7,371.36 : x
  2. Step 2: Convert to fraction form
    15,168.48/22,722 = 7,371.36/x
  3. Step 3: Cross multiply
    15,168.48x = 22,722 × 7,371.36
  4. Step 4: Simplify right side
    15,168.48x = 167,492,041.92
  5. Step 5: Solve for x
    x = 167,492,041.92/15,168.48
  6. Step 6: Final answer
    x = 11,042.11

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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.