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Finding the Fourth Proportional to 4,881.51, 6,736.49 and 2,643.41

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Solution

The fourth proportional to 4,881.51, 6,736.49 and 2,643.41 is: 3,647.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,881.51 : 6,736.49 = 2,643.41 : x
  2. Step 2: Convert to fraction form
    4,881.51/6,736.49 = 2,643.41/x
  3. Step 3: Cross multiply
    4,881.51x = 6,736.49 × 2,643.41
  4. Step 4: Simplify right side
    4,881.51x = 17,807,305.03
  5. Step 5: Solve for x
    x = 17,807,305.03/4,881.51
  6. Step 6: Final answer
    x = 3,647.91

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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.