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Finding the Fourth Proportional to 22,222, 30,666.44 and 12,150.64

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Solution

The fourth proportional to 22,222, 30,666.44 and 12,150.64 is: 16,767.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,222 : 30,666.44 = 12,150.64 : x
  2. Step 2: Convert to fraction form
    22,222/30,666.44 = 12,150.64/x
  3. Step 3: Cross multiply
    22,222x = 30,666.44 × 12,150.64
  4. Step 4: Simplify right side
    22,222x = 372,616,872.52
  5. Step 5: Solve for x
    x = 372,616,872.52/22,222
  6. Step 6: Final answer
    x = 16,767.93

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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.