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Finding the Fourth Proportional to 13,610.92, 20,399.98 and 7,033.56

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Solution

The fourth proportional to 13,610.92, 20,399.98 and 7,033.56 is: 10,541.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,610.92 : 20,399.98 = 7,033.56 : x
  2. Step 2: Convert to fraction form
    13,610.92/20,399.98 = 7,033.56/x
  3. Step 3: Cross multiply
    13,610.92x = 20,399.98 × 7,033.56
  4. Step 4: Simplify right side
    13,610.92x = 143,484,483.33
  5. Step 5: Solve for x
    x = 143,484,483.33/13,610.92
  6. Step 6: Final answer
    x = 10,541.87

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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.