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Finding the Fourth Proportional to 19,021.28, 28,545.92 and 9,026.06

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Solution

The fourth proportional to 19,021.28, 28,545.92 and 9,026.06 is: 13,545.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,021.28 : 28,545.92 = 9,026.06 : x
  2. Step 2: Convert to fraction form
    19,021.28/28,545.92 = 9,026.06/x
  3. Step 3: Cross multiply
    19,021.28x = 28,545.92 × 9,026.06
  4. Step 4: Simplify right side
    19,021.28x = 257,656,998.82
  5. Step 5: Solve for x
    x = 257,656,998.82/19,021.28
  6. Step 6: Final answer
    x = 13,545.73

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.