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Finding the Fourth Proportional to 4,655.67, 6,978.84 and 2,576.60

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Solution

The fourth proportional to 4,655.67, 6,978.84 and 2,576.60 is: 3,862.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,655.67 : 6,978.84 = 2,576.60 : x
  2. Step 2: Convert to fraction form
    4,655.67/6,978.84 = 2,576.60/x
  3. Step 3: Cross multiply
    4,655.67x = 6,978.84 × 2,576.60
  4. Step 4: Simplify right side
    4,655.67x = 17,981,679.14
  5. Step 5: Solve for x
    x = 17,981,679.14/4,655.67
  6. Step 6: Final answer
    x = 3,862.32

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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.