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Finding the Fourth Proportional to 22,406.70, 30,922.08 and 12,335.56

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Solution

The fourth proportional to 22,406.70, 30,922.08 and 12,335.56 is: 17,023.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,406.70 : 30,922.08 = 12,335.56 : x
  2. Step 2: Convert to fraction form
    22,406.70/30,922.08 = 12,335.56/x
  3. Step 3: Cross multiply
    22,406.70x = 30,922.08 × 12,335.56
  4. Step 4: Simplify right side
    22,406.70x = 381,441,173.16
  5. Step 5: Solve for x
    x = 381,441,173.16/22,406.70
  6. Step 6: Final answer
    x = 17,023.53

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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.