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Finding the Fourth Proportional to 8,831.03, 13,248.16 and 3,900.83

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Solution

The fourth proportional to 8,831.03, 13,248.16 and 3,900.83 is: 5,851.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,831.03 : 13,248.16 = 3,900.83 : x
  2. Step 2: Convert to fraction form
    8,831.03/13,248.16 = 3,900.83/x
  3. Step 3: Cross multiply
    8,831.03x = 13,248.16 × 3,900.83
  4. Step 4: Simplify right side
    8,831.03x = 51,678,743.98
  5. Step 5: Solve for x
    x = 51,678,743.98/8,831.03
  6. Step 6: Final answer
    x = 5,851.95

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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.