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Finding the Fourth Proportional to 7,313.91, 10,093.15 and 3,956.71

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Solution

The fourth proportional to 7,313.91, 10,093.15 and 3,956.71 is: 5,460.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,313.91 : 10,093.15 = 3,956.71 : x
  2. Step 2: Convert to fraction form
    7,313.91/10,093.15 = 3,956.71/x
  3. Step 3: Cross multiply
    7,313.91x = 10,093.15 × 3,956.71
  4. Step 4: Simplify right side
    7,313.91x = 39,935,702.66
  5. Step 5: Solve for x
    x = 39,935,702.66/7,313.91
  6. Step 6: Final answer
    x = 5,460.24

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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.