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Finding the Fourth Proportional to 22,391.91, 33,582.60 and 9,905.13

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Solution

The fourth proportional to 22,391.91, 33,582.60 and 9,905.13 is: 14,855.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,391.91 : 33,582.60 = 9,905.13 : x
  2. Step 2: Convert to fraction form
    22,391.91/33,582.60 = 9,905.13/x
  3. Step 3: Cross multiply
    22,391.91x = 33,582.60 × 9,905.13
  4. Step 4: Simplify right side
    22,391.91x = 332,640,018.74
  5. Step 5: Solve for x
    x = 332,640,018.74/22,391.91
  6. Step 6: Final answer
    x = 14,855.37

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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.