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Finding the Fourth Proportional to 12,924.54, 17,833.64 and 7,620.39

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Solution

The fourth proportional to 12,924.54, 17,833.64 and 7,620.39 is: 10,514.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,924.54 : 17,833.64 = 7,620.39 : x
  2. Step 2: Convert to fraction form
    12,924.54/17,833.64 = 7,620.39/x
  3. Step 3: Cross multiply
    12,924.54x = 17,833.64 × 7,620.39
  4. Step 4: Simplify right side
    12,924.54x = 135,899,253.82
  5. Step 5: Solve for x
    x = 135,899,253.82/12,924.54
  6. Step 6: Final answer
    x = 10,514.82

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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.