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Finding the Fourth Proportional to 36,811.20, 55,200.60 and 14,617.20

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Solution

The fourth proportional to 36,811.20, 55,200.60 and 14,617.20 is: 21,919.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,811.20 : 55,200.60 = 14,617.20 : x
  2. Step 2: Convert to fraction form
    36,811.20/55,200.60 = 14,617.20/x
  3. Step 3: Cross multiply
    36,811.20x = 55,200.60 × 14,617.20
  4. Step 4: Simplify right side
    36,811.20x = 806,878,210.32
  5. Step 5: Solve for x
    x = 806,878,210.32/36,811.20
  6. Step 6: Final answer
    x = 21,919.37

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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.