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Finding the Fourth Proportional to 17,883.78, 24,684.15 and 12,220.83

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Solution

The fourth proportional to 17,883.78, 24,684.15 and 12,220.83 is: 16,867.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,883.78 : 24,684.15 = 12,220.83 : x
  2. Step 2: Convert to fraction form
    17,883.78/24,684.15 = 12,220.83/x
  3. Step 3: Cross multiply
    17,883.78x = 24,684.15 × 12,220.83
  4. Step 4: Simplify right side
    17,883.78x = 301,660,800.84
  5. Step 5: Solve for x
    x = 301,660,800.84/17,883.78
  6. Step 6: Final answer
    x = 16,867.84

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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.