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Finding the Fourth Proportional to 13,745.88, 20,626.29 and 5,955.30

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Solution

The fourth proportional to 13,745.88, 20,626.29 and 5,955.30 is: 8,936.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,745.88 : 20,626.29 = 5,955.30 : x
  2. Step 2: Convert to fraction form
    13,745.88/20,626.29 = 5,955.30/x
  3. Step 3: Cross multiply
    13,745.88x = 20,626.29 × 5,955.30
  4. Step 4: Simplify right side
    13,745.88x = 122,835,744.84
  5. Step 5: Solve for x
    x = 122,835,744.84/13,745.88
  6. Step 6: Final answer
    x = 8,936.19

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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.