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Finding the Fourth Proportional to 22,263.89, 30,724.22 and 12,192.99

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Solution

The fourth proportional to 22,263.89, 30,724.22 and 12,192.99 is: 16,826.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,263.89 : 30,724.22 = 12,192.99 : x
  2. Step 2: Convert to fraction form
    22,263.89/30,724.22 = 12,192.99/x
  3. Step 3: Cross multiply
    22,263.89x = 30,724.22 × 12,192.99
  4. Step 4: Simplify right side
    22,263.89x = 374,620,107.22
  5. Step 5: Solve for x
    x = 374,620,107.22/22,263.89
  6. Step 6: Final answer
    x = 16,826.35

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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.