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Finding the Fourth Proportional to 22,567.30, 31,143.49 and 12,496.64

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Solution

The fourth proportional to 22,567.30, 31,143.49 and 12,496.64 is: 17,245.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,567.30 : 31,143.49 = 12,496.64 : x
  2. Step 2: Convert to fraction form
    22,567.30/31,143.49 = 12,496.64/x
  3. Step 3: Cross multiply
    22,567.30x = 31,143.49 × 12,496.64
  4. Step 4: Simplify right side
    22,567.30x = 389,188,795.91
  5. Step 5: Solve for x
    x = 389,188,795.91/22,567.30
  6. Step 6: Final answer
    x = 17,245.70

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