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Finding the Fourth Proportional to 22,437.97, 30,964.26 and 12,228.99

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Solution

The fourth proportional to 22,437.97, 30,964.26 and 12,228.99 is: 16,875.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,437.97 : 30,964.26 = 12,228.99 : x
  2. Step 2: Convert to fraction form
    22,437.97/30,964.26 = 12,228.99/x
  3. Step 3: Cross multiply
    22,437.97x = 30,964.26 × 12,228.99
  4. Step 4: Simplify right side
    22,437.97x = 378,661,625.90
  5. Step 5: Solve for x
    x = 378,661,625.90/22,437.97
  6. Step 6: Final answer
    x = 16,875.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.