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Finding the Fourth Proportional to 8,099.66, 12,153.19 and 3,658.51

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Solution

The fourth proportional to 8,099.66, 12,153.19 and 3,658.51 is: 5,489.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,099.66 : 12,153.19 = 3,658.51 : x
  2. Step 2: Convert to fraction form
    8,099.66/12,153.19 = 3,658.51/x
  3. Step 3: Cross multiply
    8,099.66x = 12,153.19 × 3,658.51
  4. Step 4: Simplify right side
    8,099.66x = 44,462,571.51
  5. Step 5: Solve for x
    x = 44,462,571.51/8,099.66
  6. Step 6: Final answer
    x = 5,489.44

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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.