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Finding the Fourth Proportional to 5,349.51, 7,382.25 and 2,991.65

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Solution

The fourth proportional to 5,349.51, 7,382.25 and 2,991.65 is: 4,128.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,349.51 : 7,382.25 = 2,991.65 : x
  2. Step 2: Convert to fraction form
    5,349.51/7,382.25 = 2,991.65/x
  3. Step 3: Cross multiply
    5,349.51x = 7,382.25 × 2,991.65
  4. Step 4: Simplify right side
    5,349.51x = 22,085,071.30
  5. Step 5: Solve for x
    x = 22,085,071.30/5,349.51
  6. Step 6: Final answer
    x = 4,128.43

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