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Finding the Fourth Proportional to 3,625.66, 5,003.47 and 2,829.88

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Solution

The fourth proportional to 3,625.66, 5,003.47 and 2,829.88 is: 3,905.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,625.66 : 5,003.47 = 2,829.88 : x
  2. Step 2: Convert to fraction form
    3,625.66/5,003.47 = 2,829.88/x
  3. Step 3: Cross multiply
    3,625.66x = 5,003.47 × 2,829.88
  4. Step 4: Simplify right side
    3,625.66x = 14,159,219.68
  5. Step 5: Solve for x
    x = 14,159,219.68/3,625.66
  6. Step 6: Final answer
    x = 3,905.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.