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Finding the Fourth Proportional to 5,015.88, 7,511.99 and 3,976.46

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Solution

The fourth proportional to 5,015.88, 7,511.99 and 3,976.46 is: 5,955.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.88 : 7,511.99 = 3,976.46 : x
  2. Step 2: Convert to fraction form
    5,015.88/7,511.99 = 3,976.46/x
  3. Step 3: Cross multiply
    5,015.88x = 7,511.99 × 3,976.46
  4. Step 4: Simplify right side
    5,015.88x = 29,871,156.48
  5. Step 5: Solve for x
    x = 29,871,156.48/5,015.88
  6. Step 6: Final answer
    x = 5,955.32

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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.