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Finding the Fourth Proportional to 27,329.92, 40,979.75 and 9,555.82

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Solution

The fourth proportional to 27,329.92, 40,979.75 and 9,555.82 is: 14,328.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,329.92 : 40,979.75 = 9,555.82 : x
  2. Step 2: Convert to fraction form
    27,329.92/40,979.75 = 9,555.82/x
  3. Step 3: Cross multiply
    27,329.92x = 40,979.75 × 9,555.82
  4. Step 4: Simplify right side
    27,329.92x = 391,594,964.42
  5. Step 5: Solve for x
    x = 391,594,964.42/27,329.92
  6. Step 6: Final answer
    x = 14,328.44

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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.