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Finding the Fourth Proportional to 8,907.14, 13,363.89 and 3,976.34

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Solution

The fourth proportional to 8,907.14, 13,363.89 and 3,976.34 is: 5,965.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907.14 : 13,363.89 = 3,976.34 : x
  2. Step 2: Convert to fraction form
    8,907.14/13,363.89 = 3,976.34/x
  3. Step 3: Cross multiply
    8,907.14x = 13,363.89 × 3,976.34
  4. Step 4: Simplify right side
    8,907.14x = 53,139,370.36
  5. Step 5: Solve for x
    x = 53,139,370.36/8,907.14
  6. Step 6: Final answer
    x = 5,965.93

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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.