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Finding the Fourth Proportional to 15,133.26, 20,880.78 and 8,844.42

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Solution

The fourth proportional to 15,133.26, 20,880.78 and 8,844.42 is: 12,203.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,133.26 : 20,880.78 = 8,844.42 : x
  2. Step 2: Convert to fraction form
    15,133.26/20,880.78 = 8,844.42/x
  3. Step 3: Cross multiply
    15,133.26x = 20,880.78 × 8,844.42
  4. Step 4: Simplify right side
    15,133.26x = 184,678,388.25
  5. Step 5: Solve for x
    x = 184,678,388.25/15,133.26
  6. Step 6: Final answer
    x = 12,203.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.