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Finding the Fourth Proportional to 12,467.91, 17,203.19 and 7,932.39

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Solution

The fourth proportional to 12,467.91, 17,203.19 and 7,932.39 is: 10,945.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,467.91 : 17,203.19 = 7,932.39 : x
  2. Step 2: Convert to fraction form
    12,467.91/17,203.19 = 7,932.39/x
  3. Step 3: Cross multiply
    12,467.91x = 17,203.19 × 7,932.39
  4. Step 4: Simplify right side
    12,467.91x = 136,462,496.67
  5. Step 5: Solve for x
    x = 136,462,496.67/12,467.91
  6. Step 6: Final answer
    x = 10,945.10

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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.