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Finding the Fourth Proportional to 5,275.92, 7,904.79 and 3,495.87

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Solution

The fourth proportional to 5,275.92, 7,904.79 and 3,495.87 is: 5,237.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.92 : 7,904.79 = 3,495.87 : x
  2. Step 2: Convert to fraction form
    5,275.92/7,904.79 = 3,495.87/x
  3. Step 3: Cross multiply
    5,275.92x = 7,904.79 × 3,495.87
  4. Step 4: Simplify right side
    5,275.92x = 27,634,118.22
  5. Step 5: Solve for x
    x = 27,634,118.22/5,275.92
  6. Step 6: Final answer
    x = 5,237.78

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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.