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Finding the Fourth Proportional to 16,419.28, 24,629.04 and 4,107.28

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Solution

The fourth proportional to 16,419.28, 24,629.04 and 4,107.28 is: 6,160.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,419.28 : 24,629.04 = 4,107.28 : x
  2. Step 2: Convert to fraction form
    16,419.28/24,629.04 = 4,107.28/x
  3. Step 3: Cross multiply
    16,419.28x = 24,629.04 × 4,107.28
  4. Step 4: Simplify right side
    16,419.28x = 101,158,363.41
  5. Step 5: Solve for x
    x = 101,158,363.41/16,419.28
  6. Step 6: Final answer
    x = 6,160.95

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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.