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Finding the Fourth Proportional to 13,597.62, 20,396.43 and 4,238.39

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Solution

The fourth proportional to 13,597.62, 20,396.43 and 4,238.39 is: 6,357.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,597.62 : 20,396.43 = 4,238.39 : x
  2. Step 2: Convert to fraction form
    13,597.62/20,396.43 = 4,238.39/x
  3. Step 3: Cross multiply
    13,597.62x = 20,396.43 × 4,238.39
  4. Step 4: Simplify right side
    13,597.62x = 86,448,130.88
  5. Step 5: Solve for x
    x = 86,448,130.88/13,597.62
  6. Step 6: Final answer
    x = 6,357.59

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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.