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Finding the Fourth Proportional to 36,409.78, 54,584.70 and 16,420.60

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Solution

The fourth proportional to 36,409.78, 54,584.70 and 16,420.60 is: 24,617.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,409.78 : 54,584.70 = 16,420.60 : x
  2. Step 2: Convert to fraction form
    36,409.78/54,584.70 = 16,420.60/x
  3. Step 3: Cross multiply
    36,409.78x = 54,584.70 × 16,420.60
  4. Step 4: Simplify right side
    36,409.78x = 896,313,524.82
  5. Step 5: Solve for x
    x = 896,313,524.82/36,409.78
  6. Step 6: Final answer
    x = 24,617.38

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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.