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Finding the Fourth Proportional to 16,919.13, 25,378.76 and 4,607.13

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Solution

The fourth proportional to 16,919.13, 25,378.76 and 4,607.13 is: 6,910.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,919.13 : 25,378.76 = 4,607.13 : x
  2. Step 2: Convert to fraction form
    16,919.13/25,378.76 = 4,607.13/x
  3. Step 3: Cross multiply
    16,919.13x = 25,378.76 × 4,607.13
  4. Step 4: Simplify right side
    16,919.13x = 116,923,246.56
  5. Step 5: Solve for x
    x = 116,923,246.56/16,919.13
  6. Step 6: Final answer
    x = 6,910.71

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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.