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Finding the Fourth Proportional to 9,172.65, 13,758.99 and 4,240.83

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Solution

The fourth proportional to 9,172.65, 13,758.99 and 4,240.83 is: 6,361.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,172.65 : 13,758.99 = 4,240.83 : x
  2. Step 2: Convert to fraction form
    9,172.65/13,758.99 = 4,240.83/x
  3. Step 3: Cross multiply
    9,172.65x = 13,758.99 × 4,240.83
  4. Step 4: Simplify right side
    9,172.65x = 58,349,537.56
  5. Step 5: Solve for x
    x = 58,349,537.56/9,172.65
  6. Step 6: Final answer
    x = 6,361.25

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Double scale
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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.