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Finding the Fourth Proportional to 16,717, 25,077.02 and 4,405

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Solution

The fourth proportional to 16,717, 25,077.02 and 4,405 is: 6,607.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,717 : 25,077.02 = 4,405 : x
  2. Step 2: Convert to fraction form
    16,717/25,077.02 = 4,405/x
  3. Step 3: Cross multiply
    16,717x = 25,077.02 × 4,405
  4. Step 4: Simplify right side
    16,717x = 110,464,273.10
  5. Step 5: Solve for x
    x = 110,464,273.10/16,717
  6. Step 6: Final answer
    x = 6,607.90

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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.