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Finding the Fourth Proportional to 5,347.26, 7,382.16 and 3,929.76

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Solution

The fourth proportional to 5,347.26, 7,382.16 and 3,929.76 is: 5,425.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,347.26 : 7,382.16 = 3,929.76 : x
  2. Step 2: Convert to fraction form
    5,347.26/7,382.16 = 3,929.76/x
  3. Step 3: Cross multiply
    5,347.26x = 7,382.16 × 3,929.76
  4. Step 4: Simplify right side
    5,347.26x = 29,010,117.08
  5. Step 5: Solve for x
    x = 29,010,117.08/5,347.26
  6. Step 6: Final answer
    x = 5,425.23

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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.