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Finding the Fourth Proportional to 26,959.01, 40,389.21 and 19,545.08

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Solution

The fourth proportional to 26,959.01, 40,389.21 and 19,545.08 is: 29,281.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,959.01 : 40,389.21 = 19,545.08 : x
  2. Step 2: Convert to fraction form
    26,959.01/40,389.21 = 19,545.08/x
  3. Step 3: Cross multiply
    26,959.01x = 40,389.21 × 19,545.08
  4. Step 4: Simplify right side
    26,959.01x = 789,410,138.64
  5. Step 5: Solve for x
    x = 789,410,138.64/26,959.01
  6. Step 6: Final answer
    x = 29,281.87

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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.