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Finding the Fourth Proportional to 9,991.62, 15,004.44 and 9,573.66

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Solution

The fourth proportional to 9,991.62, 15,004.44 and 9,573.66 is: 14,376.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,991.62 : 15,004.44 = 9,573.66 : x
  2. Step 2: Convert to fraction form
    9,991.62/15,004.44 = 9,573.66/x
  3. Step 3: Cross multiply
    9,991.62x = 15,004.44 × 9,573.66
  4. Step 4: Simplify right side
    9,991.62x = 143,647,407.05
  5. Step 5: Solve for x
    x = 143,647,407.05/9,991.62
  6. Step 6: Final answer
    x = 14,376.79

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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.