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Finding the Fourth Proportional to 8,907.80, 13,362.57 and 3,365.79

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Solution

The fourth proportional to 8,907.80, 13,362.57 and 3,365.79 is: 5,049.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907.80 : 13,362.57 = 3,365.79 : x
  2. Step 2: Convert to fraction form
    8,907.80/13,362.57 = 3,365.79/x
  3. Step 3: Cross multiply
    8,907.80x = 13,362.57 × 3,365.79
  4. Step 4: Simplify right side
    8,907.80x = 44,975,604.48
  5. Step 5: Solve for x
    x = 44,975,604.48/8,907.80
  6. Step 6: Final answer
    x = 5,049.02

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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.