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Finding the Fourth Proportional to 7,933.95, 11,900.03 and 2,091.02

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Solution

The fourth proportional to 7,933.95, 11,900.03 and 2,091.02 is: 3,136.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,933.95 : 11,900.03 = 2,091.02 : x
  2. Step 2: Convert to fraction form
    7,933.95/11,900.03 = 2,091.02/x
  3. Step 3: Cross multiply
    7,933.95x = 11,900.03 × 2,091.02
  4. Step 4: Simplify right side
    7,933.95x = 24,883,130.78
  5. Step 5: Solve for x
    x = 24,883,130.78/7,933.95
  6. Step 6: Final answer
    x = 3,136.29

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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.