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Finding the Fourth Proportional to 22,059.98, 30,443.06 and 11,988.62

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Solution

The fourth proportional to 22,059.98, 30,443.06 and 11,988.62 is: 16,544.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,059.98 : 30,443.06 = 11,988.62 : x
  2. Step 2: Convert to fraction form
    22,059.98/30,443.06 = 11,988.62/x
  3. Step 3: Cross multiply
    22,059.98x = 30,443.06 × 11,988.62
  4. Step 4: Simplify right side
    22,059.98x = 364,970,155.73
  5. Step 5: Solve for x
    x = 364,970,155.73/22,059.98
  6. Step 6: Final answer
    x = 16,544.45

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Double scale
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Similar ratio
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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.