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Finding the Fourth Proportional to 7,716.03, 11,573.96 and 1,872.64

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Solution

The fourth proportional to 7,716.03, 11,573.96 and 1,872.64 is: 2,808.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.03 : 11,573.96 = 1,872.64 : x
  2. Step 2: Convert to fraction form
    7,716.03/11,573.96 = 1,872.64/x
  3. Step 3: Cross multiply
    7,716.03x = 11,573.96 × 1,872.64
  4. Step 4: Simplify right side
    7,716.03x = 21,673,800.46
  5. Step 5: Solve for x
    x = 21,673,800.46/7,716.03
  6. Step 6: Final answer
    x = 2,808.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.