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Finding the Fourth Proportional to 13,593.70, 18,758.04 and 7,624.22

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Solution

The fourth proportional to 13,593.70, 18,758.04 and 7,624.22 is: 10,520.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,593.70 : 18,758.04 = 7,624.22 : x
  2. Step 2: Convert to fraction form
    13,593.70/18,758.04 = 7,624.22/x
  3. Step 3: Cross multiply
    13,593.70x = 18,758.04 × 7,624.22
  4. Step 4: Simplify right side
    13,593.70x = 143,015,423.73
  5. Step 5: Solve for x
    x = 143,015,423.73/13,593.70
  6. Step 6: Final answer
    x = 10,520.71

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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.