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Finding the Fourth Proportional to 16,028.70, 22,119.51 and 8,859.12

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Solution

The fourth proportional to 16,028.70, 22,119.51 and 8,859.12 is: 12,225.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,028.70 : 22,119.51 = 8,859.12 : x
  2. Step 2: Convert to fraction form
    16,028.70/22,119.51 = 8,859.12/x
  3. Step 3: Cross multiply
    16,028.70x = 22,119.51 × 8,859.12
  4. Step 4: Simplify right side
    16,028.70x = 195,959,393.43
  5. Step 5: Solve for x
    x = 195,959,393.43/16,028.70
  6. Step 6: Final answer
    x = 12,225.53

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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.