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Finding the Fourth Proportional to 27,081.32, 40,621.92 and 7,362.74

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Solution

The fourth proportional to 27,081.32, 40,621.92 and 7,362.74 is: 11,044.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,081.32 : 40,621.92 = 7,362.74 : x
  2. Step 2: Convert to fraction form
    27,081.32/40,621.92 = 7,362.74/x
  3. Step 3: Cross multiply
    27,081.32x = 40,621.92 × 7,362.74
  4. Step 4: Simplify right side
    27,081.32x = 299,088,635.26
  5. Step 5: Solve for x
    x = 299,088,635.26/27,081.32
  6. Step 6: Final answer
    x = 11,044.09

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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.