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Finding the Fourth Proportional to 5,286.92, 7,295.99 and 2,929.08

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Solution

The fourth proportional to 5,286.92, 7,295.99 and 2,929.08 is: 4,042.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.92 : 7,295.99 = 2,929.08 : x
  2. Step 2: Convert to fraction form
    5,286.92/7,295.99 = 2,929.08/x
  3. Step 3: Cross multiply
    5,286.92x = 7,295.99 × 2,929.08
  4. Step 4: Simplify right side
    5,286.92x = 21,370,538.39
  5. Step 5: Solve for x
    x = 21,370,538.39/5,286.92
  6. Step 6: Final answer
    x = 4,042.15

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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.