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Finding the Fourth Proportional to 6,779.92, 9,356.76 and 3,796

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Solution

The fourth proportional to 6,779.92, 9,356.76 and 3,796 is: 5,238.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,779.92 : 9,356.76 = 3,796 : x
  2. Step 2: Convert to fraction form
    6,779.92/9,356.76 = 3,796/x
  3. Step 3: Cross multiply
    6,779.92x = 9,356.76 × 3,796
  4. Step 4: Simplify right side
    6,779.92x = 35,518,260.96
  5. Step 5: Solve for x
    x = 35,518,260.96/6,779.92
  6. Step 6: Final answer
    x = 5,238.74

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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.