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Finding the Fourth Proportional to 44,493.20, 66,739.80 and 18,216.80

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Solution

The fourth proportional to 44,493.20, 66,739.80 and 18,216.80 is: 27,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,493.20 : 66,739.80 = 18,216.80 : x
  2. Step 2: Convert to fraction form
    44,493.20/66,739.80 = 18,216.80/x
  3. Step 3: Cross multiply
    44,493.20x = 66,739.80 × 18,216.80
  4. Step 4: Simplify right side
    44,493.20x = 1,215,785,588.64
  5. Step 5: Solve for x
    x = 1,215,785,588.64/44,493.20
  6. Step 6: Final answer
    x = 27,325.20

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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.