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Finding the Fourth Proportional to 22,650.88, 33,969.76 and 7,859.20

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Solution

The fourth proportional to 22,650.88, 33,969.76 and 7,859.20 is: 11,786.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,650.88 : 33,969.76 = 7,859.20 : x
  2. Step 2: Convert to fraction form
    22,650.88/33,969.76 = 7,859.20/x
  3. Step 3: Cross multiply
    22,650.88x = 33,969.76 × 7,859.20
  4. Step 4: Simplify right side
    22,650.88x = 266,975,137.79
  5. Step 5: Solve for x
    x = 266,975,137.79/22,650.88
  6. Step 6: Final answer
    x = 11,786.52

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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.