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Finding the Fourth Proportional to 45,952.68, 68,901.32 and 20,647.56

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Solution

The fourth proportional to 45,952.68, 68,901.32 and 20,647.56 is: 30,958.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,952.68 : 68,901.32 = 20,647.56 : x
  2. Step 2: Convert to fraction form
    45,952.68/68,901.32 = 20,647.56/x
  3. Step 3: Cross multiply
    45,952.68x = 68,901.32 × 20,647.56
  4. Step 4: Simplify right side
    45,952.68x = 1,422,644,138.78
  5. Step 5: Solve for x
    x = 1,422,644,138.78/45,952.68
  6. Step 6: Final answer
    x = 30,958.89

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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.