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Finding the Fourth Proportional to 19,558.24, 26,990 and 11,060.24

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Solution

The fourth proportional to 19,558.24, 26,990 and 11,060.24 is: 15,262.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,558.24 : 26,990 = 11,060.24 : x
  2. Step 2: Convert to fraction form
    19,558.24/26,990 = 11,060.24/x
  3. Step 3: Cross multiply
    19,558.24x = 26,990 × 11,060.24
  4. Step 4: Simplify right side
    19,558.24x = 298,515,877.60
  5. Step 5: Solve for x
    x = 298,515,877.60/19,558.24
  6. Step 6: Final answer
    x = 15,262.92

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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.