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Finding the Fourth Proportional to 15,993.88, 22,074.22 and 9,285.08

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Solution

The fourth proportional to 15,993.88, 22,074.22 and 9,285.08 is: 12,814.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,993.88 : 22,074.22 = 9,285.08 : x
  2. Step 2: Convert to fraction form
    15,993.88/22,074.22 = 9,285.08/x
  3. Step 3: Cross multiply
    15,993.88x = 22,074.22 × 9,285.08
  4. Step 4: Simplify right side
    15,993.88x = 204,960,898.64
  5. Step 5: Solve for x
    x = 204,960,898.64/15,993.88
  6. Step 6: Final answer
    x = 12,814.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.