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Finding the Fourth Proportional to 16,993.50, 25,491.69 and 4,681.50

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Solution

The fourth proportional to 16,993.50, 25,491.69 and 4,681.50 is: 7,022.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,993.50 : 25,491.69 = 4,681.50 : x
  2. Step 2: Convert to fraction form
    16,993.50/25,491.69 = 4,681.50/x
  3. Step 3: Cross multiply
    16,993.50x = 25,491.69 × 4,681.50
  4. Step 4: Simplify right side
    16,993.50x = 119,339,346.74
  5. Step 5: Solve for x
    x = 119,339,346.74/16,993.50
  6. Step 6: Final answer
    x = 7,022.65

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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.