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Finding the Fourth Proportional to 3,355.88, 4,632.36 and 2,881.88

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Solution

The fourth proportional to 3,355.88, 4,632.36 and 2,881.88 is: 3,978.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,355.88 : 4,632.36 = 2,881.88 : x
  2. Step 2: Convert to fraction form
    3,355.88/4,632.36 = 2,881.88/x
  3. Step 3: Cross multiply
    3,355.88x = 4,632.36 × 2,881.88
  4. Step 4: Simplify right side
    3,355.88x = 13,349,901.97
  5. Step 5: Solve for x
    x = 13,349,901.97/3,355.88
  6. Step 6: Final answer
    x = 3,978.06

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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.