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Finding the Fourth Proportional to 4,841, 6,680.82 and 3,185

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Solution

The fourth proportional to 4,841, 6,680.82 and 3,185 is: 4,395.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,841 : 6,680.82 = 3,185 : x
  2. Step 2: Convert to fraction form
    4,841/6,680.82 = 3,185/x
  3. Step 3: Cross multiply
    4,841x = 6,680.82 × 3,185
  4. Step 4: Simplify right side
    4,841x = 21,278,411.70
  5. Step 5: Solve for x
    x = 21,278,411.70/4,841
  6. Step 6: Final answer
    x = 4,395.46

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1.5x scale

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.