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Finding the Fourth Proportional to 22,267.76, 30,732.35 and 12,836.39

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Solution

The fourth proportional to 22,267.76, 30,732.35 and 12,836.39 is: 17,715.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,267.76 : 30,732.35 = 12,836.39 : x
  2. Step 2: Convert to fraction form
    22,267.76/30,732.35 = 12,836.39/x
  3. Step 3: Cross multiply
    22,267.76x = 30,732.35 × 12,836.39
  4. Step 4: Simplify right side
    22,267.76x = 394,492,212.37
  5. Step 5: Solve for x
    x = 394,492,212.37/22,267.76
  6. Step 6: Final answer
    x = 17,715.85

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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.