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Finding the Fourth Proportional to 13,360.16, 20,040.48 and 5,040.92

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Solution

The fourth proportional to 13,360.16, 20,040.48 and 5,040.92 is: 7,561.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,360.16 : 20,040.48 = 5,040.92 : x
  2. Step 2: Convert to fraction form
    13,360.16/20,040.48 = 5,040.92/x
  3. Step 3: Cross multiply
    13,360.16x = 20,040.48 × 5,040.92
  4. Step 4: Simplify right side
    13,360.16x = 101,022,456.44
  5. Step 5: Solve for x
    x = 101,022,456.44/13,360.16
  6. Step 6: Final answer
    x = 7,561.47

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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.