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Finding the Fourth Proportional to 22,406.64, 33,606.72 and 7,616.04

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Solution

The fourth proportional to 22,406.64, 33,606.72 and 7,616.04 is: 11,422.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,406.64 : 33,606.72 = 7,616.04 : x
  2. Step 2: Convert to fraction form
    22,406.64/33,606.72 = 7,616.04/x
  3. Step 3: Cross multiply
    22,406.64x = 33,606.72 × 7,616.04
  4. Step 4: Simplify right side
    22,406.64x = 255,950,123.79
  5. Step 5: Solve for x
    x = 255,950,123.79/22,406.64
  6. Step 6: Final answer
    x = 11,422.96

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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.