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Finding the Fourth Proportional to 14,661.95, 21,993.86 and 5,173.09

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Solution

The fourth proportional to 14,661.95, 21,993.86 and 5,173.09 is: 7,759.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,661.95 : 21,993.86 = 5,173.09 : x
  2. Step 2: Convert to fraction form
    14,661.95/21,993.86 = 5,173.09/x
  3. Step 3: Cross multiply
    14,661.95x = 21,993.86 × 5,173.09
  4. Step 4: Simplify right side
    14,661.95x = 113,776,217.23
  5. Step 5: Solve for x
    x = 113,776,217.23/14,661.95
  6. Step 6: Final answer
    x = 7,759.96

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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.