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Finding the Fourth Proportional to 36,173.60, 54,276.60 and 12,816.80

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Solution

The fourth proportional to 36,173.60, 54,276.60 and 12,816.80 is: 19,230.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,173.60 : 54,276.60 = 12,816.80 : x
  2. Step 2: Convert to fraction form
    36,173.60/54,276.60 = 12,816.80/x
  3. Step 3: Cross multiply
    36,173.60x = 54,276.60 × 12,816.80
  4. Step 4: Simplify right side
    36,173.60x = 695,652,326.88
  5. Step 5: Solve for x
    x = 695,652,326.88/36,173.60
  6. Step 6: Final answer
    x = 19,230.94

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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.