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Finding the Fourth Proportional to 22,260.94, 30,720.09 and 12,324.94

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Solution

The fourth proportional to 22,260.94, 30,720.09 and 12,324.94 is: 17,008.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,260.94 : 30,720.09 = 12,324.94 : x
  2. Step 2: Convert to fraction form
    22,260.94/30,720.09 = 12,324.94/x
  3. Step 3: Cross multiply
    22,260.94x = 30,720.09 × 12,324.94
  4. Step 4: Simplify right side
    22,260.94x = 378,623,235.46
  5. Step 5: Solve for x
    x = 378,623,235.46/22,260.94
  6. Step 6: Final answer
    x = 17,008.41

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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.