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Finding the Fourth Proportional to 13,841.60, 20,733.60 and 11,537.60

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Solution

The fourth proportional to 13,841.60, 20,733.60 and 11,537.60 is: 17,282.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,841.60 : 20,733.60 = 11,537.60 : x
  2. Step 2: Convert to fraction form
    13,841.60/20,733.60 = 11,537.60/x
  3. Step 3: Cross multiply
    13,841.60x = 20,733.60 × 11,537.60
  4. Step 4: Simplify right side
    13,841.60x = 239,215,983.36
  5. Step 5: Solve for x
    x = 239,215,983.36/13,841.60
  6. Step 6: Final answer
    x = 17,282.39

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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.