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Finding the Fourth Proportional to 7,171.53, 9,896.82 and 4,027.65

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Solution

The fourth proportional to 7,171.53, 9,896.82 and 4,027.65 is: 5,558.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171.53 : 9,896.82 = 4,027.65 : x
  2. Step 2: Convert to fraction form
    7,171.53/9,896.82 = 4,027.65/x
  3. Step 3: Cross multiply
    7,171.53x = 9,896.82 × 4,027.65
  4. Step 4: Simplify right side
    7,171.53x = 39,860,927.07
  5. Step 5: Solve for x
    x = 39,860,927.07/7,171.53
  6. Step 6: Final answer
    x = 5,558.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.