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Finding the Fourth Proportional to 9,267.80, 13,895.56 and 5,109.80

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Solution

The fourth proportional to 9,267.80, 13,895.56 and 5,109.80 is: 7,661.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,267.80 : 13,895.56 = 5,109.80 : x
  2. Step 2: Convert to fraction form
    9,267.80/13,895.56 = 5,109.80/x
  3. Step 3: Cross multiply
    9,267.80x = 13,895.56 × 5,109.80
  4. Step 4: Simplify right side
    9,267.80x = 71,003,506.94
  5. Step 5: Solve for x
    x = 71,003,506.94/9,267.80
  6. Step 6: Final answer
    x = 7,661.31

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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.