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Finding the Fourth Proportional to 13,393.01, 20,089.97 and 6,369.41

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Solution

The fourth proportional to 13,393.01, 20,089.97 and 6,369.41 is: 9,554.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,393.01 : 20,089.97 = 6,369.41 : x
  2. Step 2: Convert to fraction form
    13,393.01/20,089.97 = 6,369.41/x
  3. Step 3: Cross multiply
    13,393.01x = 20,089.97 × 6,369.41
  4. Step 4: Simplify right side
    13,393.01x = 127,961,255.82
  5. Step 5: Solve for x
    x = 127,961,255.82/13,393.01
  6. Step 6: Final answer
    x = 9,554.33

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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.