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Finding the Fourth Proportional to 19,045.27, 26,295.46 and 11,877.98

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Solution

The fourth proportional to 19,045.27, 26,295.46 and 11,877.98 is: 16,399.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,045.27 : 26,295.46 = 11,877.98 : x
  2. Step 2: Convert to fraction form
    19,045.27/26,295.46 = 11,877.98/x
  3. Step 3: Cross multiply
    19,045.27x = 26,295.46 × 11,877.98
  4. Step 4: Simplify right side
    19,045.27x = 312,336,984.01
  5. Step 5: Solve for x
    x = 312,336,984.01/19,045.27
  6. Step 6: Final answer
    x = 16,399.72

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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.