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Finding the Fourth Proportional to 13,597.20, 20,399.04 and 6,203.88

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Solution

The fourth proportional to 13,597.20, 20,399.04 and 6,203.88 is: 9,307.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,597.20 : 20,399.04 = 6,203.88 : x
  2. Step 2: Convert to fraction form
    13,597.20/20,399.04 = 6,203.88/x
  3. Step 3: Cross multiply
    13,597.20x = 20,399.04 × 6,203.88
  4. Step 4: Simplify right side
    13,597.20x = 126,553,196.28
  5. Step 5: Solve for x
    x = 126,553,196.28/13,597.20
  6. Step 6: Final answer
    x = 9,307.30

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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.