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Finding the Fourth Proportional to 13,596.59, 20,281.89 and 13,371.04

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Solution

The fourth proportional to 13,596.59, 20,281.89 and 13,371.04 is: 19,945.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,596.59 : 20,281.89 = 13,371.04 : x
  2. Step 2: Convert to fraction form
    13,596.59/20,281.89 = 13,371.04/x
  3. Step 3: Cross multiply
    13,596.59x = 20,281.89 × 13,371.04
  4. Step 4: Simplify right side
    13,596.59x = 271,190,037.96
  5. Step 5: Solve for x
    x = 271,190,037.96/13,596.59
  6. Step 6: Final answer
    x = 19,945.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.