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Finding the Fourth Proportional to 45,212.60, 67,799.70 and 21,846.20

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Solution

The fourth proportional to 45,212.60, 67,799.70 and 21,846.20 is: 32,760.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,212.60 : 67,799.70 = 21,846.20 : x
  2. Step 2: Convert to fraction form
    45,212.60/67,799.70 = 21,846.20/x
  3. Step 3: Cross multiply
    45,212.60x = 67,799.70 × 21,846.20
  4. Step 4: Simplify right side
    45,212.60x = 1,481,165,806.14
  5. Step 5: Solve for x
    x = 1,481,165,806.14/45,212.60
  6. Step 6: Final answer
    x = 32,760.02

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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.