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Finding the Fourth Proportional to 13,636.62, 20,333.07 and 13,609.98

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Solution

The fourth proportional to 13,636.62, 20,333.07 and 13,609.98 is: 20,293.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.62 : 20,333.07 = 13,609.98 : x
  2. Step 2: Convert to fraction form
    13,636.62/20,333.07 = 13,609.98/x
  3. Step 3: Cross multiply
    13,636.62x = 20,333.07 × 13,609.98
  4. Step 4: Simplify right side
    13,636.62x = 276,732,676.04
  5. Step 5: Solve for x
    x = 276,732,676.04/13,636.62
  6. Step 6: Final answer
    x = 20,293.35

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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.