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Finding the Fourth Proportional to 22,054.50, 30,435.25 and 11,982.95

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Solution

The fourth proportional to 22,054.50, 30,435.25 and 11,982.95 is: 16,536.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,054.50 : 30,435.25 = 11,982.95 : x
  2. Step 2: Convert to fraction form
    22,054.50/30,435.25 = 11,982.95/x
  3. Step 3: Cross multiply
    22,054.50x = 30,435.25 × 11,982.95
  4. Step 4: Simplify right side
    22,054.50x = 364,704,147.59
  5. Step 5: Solve for x
    x = 364,704,147.59/22,054.50
  6. Step 6: Final answer
    x = 16,536.50

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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.