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Finding the Fourth Proportional to 43,287.20, 64,930.80 and 23,604.20

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Solution

The fourth proportional to 43,287.20, 64,930.80 and 23,604.20 is: 35,406.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,287.20 : 64,930.80 = 23,604.20 : x
  2. Step 2: Convert to fraction form
    43,287.20/64,930.80 = 23,604.20/x
  3. Step 3: Cross multiply
    43,287.20x = 64,930.80 × 23,604.20
  4. Step 4: Simplify right side
    43,287.20x = 1,532,639,589.36
  5. Step 5: Solve for x
    x = 1,532,639,589.36/43,287.20
  6. Step 6: Final answer
    x = 35,406.30

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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.