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Finding the Fourth Proportional to 18,510.68, 27,766.02 and 5,363.06

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Solution

The fourth proportional to 18,510.68, 27,766.02 and 5,363.06 is: 8,044.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,510.68 : 27,766.02 = 5,363.06 : x
  2. Step 2: Convert to fraction form
    18,510.68/27,766.02 = 5,363.06/x
  3. Step 3: Cross multiply
    18,510.68x = 27,766.02 × 5,363.06
  4. Step 4: Simplify right side
    18,510.68x = 148,910,831.22
  5. Step 5: Solve for x
    x = 148,910,831.22/18,510.68
  6. Step 6: Final answer
    x = 8,044.59

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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.