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Finding the Fourth Proportional to 9,992.88, 14,991.96 and 4,153.62

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Solution

The fourth proportional to 9,992.88, 14,991.96 and 4,153.62 is: 6,231.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,992.88 : 14,991.96 = 4,153.62 : x
  2. Step 2: Convert to fraction form
    9,992.88/14,991.96 = 4,153.62/x
  3. Step 3: Cross multiply
    9,992.88x = 14,991.96 × 4,153.62
  4. Step 4: Simplify right side
    9,992.88x = 62,270,904.90
  5. Step 5: Solve for x
    x = 62,270,904.90/9,992.88
  6. Step 6: Final answer
    x = 6,231.53

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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.