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Finding the Fourth Proportional to 7,075.92, 9,764.72 and 3,889.25

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Solution

The fourth proportional to 7,075.92, 9,764.72 and 3,889.25 is: 5,367.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,075.92 : 9,764.72 = 3,889.25 : x
  2. Step 2: Convert to fraction form
    7,075.92/9,764.72 = 3,889.25/x
  3. Step 3: Cross multiply
    7,075.92x = 9,764.72 × 3,889.25
  4. Step 4: Simplify right side
    7,075.92x = 37,977,437.26
  5. Step 5: Solve for x
    x = 37,977,437.26/7,075.92
  6. Step 6: Final answer
    x = 5,367.14

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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.