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Finding the Fourth Proportional to 10,622.34, 15,936.22 and 6,243.48

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Solution

The fourth proportional to 10,622.34, 15,936.22 and 6,243.48 is: 9,366.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,622.34 : 15,936.22 = 6,243.48 : x
  2. Step 2: Convert to fraction form
    10,622.34/15,936.22 = 6,243.48/x
  3. Step 3: Cross multiply
    10,622.34x = 15,936.22 × 6,243.48
  4. Step 4: Simplify right side
    10,622.34x = 99,497,470.85
  5. Step 5: Solve for x
    x = 99,497,470.85/10,622.34
  6. Step 6: Final answer
    x = 9,366.81

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1.5x scale

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.