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Finding the Fourth Proportional to 14,381.27, 19,845.78 and 8,007.88

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Solution

The fourth proportional to 14,381.27, 19,845.78 and 8,007.88 is: 11,050.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,381.27 : 19,845.78 = 8,007.88 : x
  2. Step 2: Convert to fraction form
    14,381.27/19,845.78 = 8,007.88/x
  3. Step 3: Cross multiply
    14,381.27x = 19,845.78 × 8,007.88
  4. Step 4: Simplify right side
    14,381.27x = 158,922,624.75
  5. Step 5: Solve for x
    x = 158,922,624.75/14,381.27
  6. Step 6: Final answer
    x = 11,050.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.