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Finding the Fourth Proportional to 13,153.58, 18,150.98 and 7,183.98

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Solution

The fourth proportional to 13,153.58, 18,150.98 and 7,183.98 is: 9,913.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153.58 : 18,150.98 = 7,183.98 : x
  2. Step 2: Convert to fraction form
    13,153.58/18,150.98 = 7,183.98/x
  3. Step 3: Cross multiply
    13,153.58x = 18,150.98 × 7,183.98
  4. Step 4: Simplify right side
    13,153.58x = 130,396,241.38
  5. Step 5: Solve for x
    x = 130,396,241.38/13,153.58
  6. Step 6: Final answer
    x = 9,913.37

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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.