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Finding the Fourth Proportional to 22,469.19, 33,703.92 and 9,986.28

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Solution

The fourth proportional to 22,469.19, 33,703.92 and 9,986.28 is: 14,979.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,469.19 : 33,703.92 = 9,986.28 : x
  2. Step 2: Convert to fraction form
    22,469.19/33,703.92 = 9,986.28/x
  3. Step 3: Cross multiply
    22,469.19x = 33,703.92 × 9,986.28
  4. Step 4: Simplify right side
    22,469.19x = 336,576,782.22
  5. Step 5: Solve for x
    x = 336,576,782.22/22,469.19
  6. Step 6: Final answer
    x = 14,979.48

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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.