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Finding the Fourth Proportional to 9,173.62, 13,762.21 and 3,908.53

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Solution

The fourth proportional to 9,173.62, 13,762.21 and 3,908.53 is: 5,863.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,173.62 : 13,762.21 = 3,908.53 : x
  2. Step 2: Convert to fraction form
    9,173.62/13,762.21 = 3,908.53/x
  3. Step 3: Cross multiply
    9,173.62x = 13,762.21 × 3,908.53
  4. Step 4: Simplify right side
    9,173.62x = 53,790,010.65
  5. Step 5: Solve for x
    x = 53,790,010.65/9,173.62
  6. Step 6: Final answer
    x = 5,863.55

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1.5x scale

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.