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Finding the Fourth Proportional to 4,881.68, 6,736.70 and 2,643.54

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Solution

The fourth proportional to 4,881.68, 6,736.70 and 2,643.54 is: 3,648.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,881.68 : 6,736.70 = 2,643.54 : x
  2. Step 2: Convert to fraction form
    4,881.68/6,736.70 = 2,643.54/x
  3. Step 3: Cross multiply
    4,881.68x = 6,736.70 × 2,643.54
  4. Step 4: Simplify right side
    4,881.68x = 17,808,722.70
  5. Step 5: Solve for x
    x = 17,808,722.70/4,881.68
  6. Step 6: Final answer
    x = 3,648.08

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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.