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Finding the Fourth Proportional to 13,380.08, 20,071.08 and 5,058.54

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Solution

The fourth proportional to 13,380.08, 20,071.08 and 5,058.54 is: 7,588.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.08 : 20,071.08 = 5,058.54 : x
  2. Step 2: Convert to fraction form
    13,380.08/20,071.08 = 5,058.54/x
  3. Step 3: Cross multiply
    13,380.08x = 20,071.08 × 5,058.54
  4. Step 4: Simplify right side
    13,380.08x = 101,530,361.02
  5. Step 5: Solve for x
    x = 101,530,361.02/13,380.08
  6. Step 6: Final answer
    x = 7,588.18

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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.