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Finding the Fourth Proportional to 13,049.92, 18,006.96 and 7,383.16

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Solution

The fourth proportional to 13,049.92, 18,006.96 and 7,383.16 is: 10,187.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,049.92 : 18,006.96 = 7,383.16 : x
  2. Step 2: Convert to fraction form
    13,049.92/18,006.96 = 7,383.16/x
  3. Step 3: Cross multiply
    13,049.92x = 18,006.96 × 7,383.16
  4. Step 4: Simplify right side
    13,049.92x = 132,948,266.79
  5. Step 5: Solve for x
    x = 132,948,266.79/13,049.92
  6. Step 6: Final answer
    x = 10,187.67

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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.