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Finding the Fourth Proportional to 7,355.88, 11,041.71 and 2,976.21

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Solution

The fourth proportional to 7,355.88, 11,041.71 and 2,976.21 is: 4,467.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,355.88 : 11,041.71 = 2,976.21 : x
  2. Step 2: Convert to fraction form
    7,355.88/11,041.71 = 2,976.21/x
  3. Step 3: Cross multiply
    7,355.88x = 11,041.71 × 2,976.21
  4. Step 4: Simplify right side
    7,355.88x = 32,862,447.72
  5. Step 5: Solve for x
    x = 32,862,447.72/7,355.88
  6. Step 6: Final answer
    x = 4,467.51

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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.