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Finding the Fourth Proportional to 22,346.54, 33,489.57 and 8,487.98

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Solution

The fourth proportional to 22,346.54, 33,489.57 and 8,487.98 is: 12,720.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,346.54 : 33,489.57 = 8,487.98 : x
  2. Step 2: Convert to fraction form
    22,346.54/33,489.57 = 8,487.98/x
  3. Step 3: Cross multiply
    22,346.54x = 33,489.57 × 8,487.98
  4. Step 4: Simplify right side
    22,346.54x = 284,258,800.37
  5. Step 5: Solve for x
    x = 284,258,800.37/22,346.54
  6. Step 6: Final answer
    x = 12,720.48

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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.