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Finding the Fourth Proportional to 16,919.18, 25,378.02 and 4,438.92

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Solution

The fourth proportional to 16,919.18, 25,378.02 and 4,438.92 is: 6,658.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,919.18 : 25,378.02 = 4,438.92 : x
  2. Step 2: Convert to fraction form
    16,919.18/25,378.02 = 4,438.92/x
  3. Step 3: Cross multiply
    16,919.18x = 25,378.02 × 4,438.92
  4. Step 4: Simplify right side
    16,919.18x = 112,651,000.54
  5. Step 5: Solve for x
    x = 112,651,000.54/16,919.18
  6. Step 6: Final answer
    x = 6,658.18

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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.