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Finding the Fourth Proportional to 22,186.40, 33,284.40 and 6,605.60

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Solution

The fourth proportional to 22,186.40, 33,284.40 and 6,605.60 is: 9,909.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,186.40 : 33,284.40 = 6,605.60 : x
  2. Step 2: Convert to fraction form
    22,186.40/33,284.40 = 6,605.60/x
  3. Step 3: Cross multiply
    22,186.40x = 33,284.40 × 6,605.60
  4. Step 4: Simplify right side
    22,186.40x = 219,863,432.64
  5. Step 5: Solve for x
    x = 219,863,432.64/22,186.40
  6. Step 6: Final answer
    x = 9,909.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.