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Finding the Fourth Proportional to 14,841.62, 20,481.16 and 8,127.12

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Solution

The fourth proportional to 14,841.62, 20,481.16 and 8,127.12 is: 11,215.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,841.62 : 20,481.16 = 8,127.12 : x
  2. Step 2: Convert to fraction form
    14,841.62/20,481.16 = 8,127.12/x
  3. Step 3: Cross multiply
    14,841.62x = 20,481.16 × 8,127.12
  4. Step 4: Simplify right side
    14,841.62x = 166,452,804.42
  5. Step 5: Solve for x
    x = 166,452,804.42/14,841.62
  6. Step 6: Final answer
    x = 11,215.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.