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Finding the Fourth Proportional to 48,606.99, 72,939.18 and 20,525.22

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Solution

The fourth proportional to 48,606.99, 72,939.18 and 20,525.22 is: 30,799.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,606.99 : 72,939.18 = 20,525.22 : x
  2. Step 2: Convert to fraction form
    48,606.99/72,939.18 = 20,525.22/x
  3. Step 3: Cross multiply
    48,606.99x = 72,939.18 × 20,525.22
  4. Step 4: Simplify right side
    48,606.99x = 1,497,092,716.12
  5. Step 5: Solve for x
    x = 1,497,092,716.12/48,606.99
  6. Step 6: Final answer
    x = 30,799.95

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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.