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Finding the Fourth Proportional to 7,712.99, 10,644.02 and 4,687.25

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Solution

The fourth proportional to 7,712.99, 10,644.02 and 4,687.25 is: 6,468.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.99 : 10,644.02 = 4,687.25 : x
  2. Step 2: Convert to fraction form
    7,712.99/10,644.02 = 4,687.25/x
  3. Step 3: Cross multiply
    7,712.99x = 10,644.02 × 4,687.25
  4. Step 4: Simplify right side
    7,712.99x = 49,891,141.24
  5. Step 5: Solve for x
    x = 49,891,141.24/7,712.99
  6. Step 6: Final answer
    x = 6,468.46

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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.