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Finding the Fourth Proportional to 73,933.20, 110,899.80 and 21,344.40

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Solution

The fourth proportional to 73,933.20, 110,899.80 and 21,344.40 is: 32,016.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,933.20 : 110,899.80 = 21,344.40 : x
  2. Step 2: Convert to fraction form
    73,933.20/110,899.80 = 21,344.40/x
  3. Step 3: Cross multiply
    73,933.20x = 110,899.80 × 21,344.40
  4. Step 4: Simplify right side
    73,933.20x = 2,367,089,691.12
  5. Step 5: Solve for x
    x = 2,367,089,691.12/73,933.20
  6. Step 6: Final answer
    x = 32,016.60

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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.