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Finding the Fourth Proportional to 13,892.14, 20,831.73 and 8,050.42

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Solution

The fourth proportional to 13,892.14, 20,831.73 and 8,050.42 is: 12,071.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,892.14 : 20,831.73 = 8,050.42 : x
  2. Step 2: Convert to fraction form
    13,892.14/20,831.73 = 8,050.42/x
  3. Step 3: Cross multiply
    13,892.14x = 20,831.73 × 8,050.42
  4. Step 4: Simplify right side
    13,892.14x = 167,704,175.83
  5. Step 5: Solve for x
    x = 167,704,175.83/13,892.14
  6. Step 6: Final answer
    x = 12,071.87

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1.5x scale

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.