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Finding the Fourth Proportional to 27,322.65, 40,979.25 and 7,601.31

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Solution

The fourth proportional to 27,322.65, 40,979.25 and 7,601.31 is: 11,400.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,322.65 : 40,979.25 = 7,601.31 : x
  2. Step 2: Convert to fraction form
    27,322.65/40,979.25 = 7,601.31/x
  3. Step 3: Cross multiply
    27,322.65x = 40,979.25 × 7,601.31
  4. Step 4: Simplify right side
    27,322.65x = 311,495,982.82
  5. Step 5: Solve for x
    x = 311,495,982.82/27,322.65
  6. Step 6: Final answer
    x = 11,400.65

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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.