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Finding the Fourth Proportional to 3,241.92, 4,473.81 and 1,985.16

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Solution

The fourth proportional to 3,241.92, 4,473.81 and 1,985.16 is: 2,739.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,241.92 : 4,473.81 = 1,985.16 : x
  2. Step 2: Convert to fraction form
    3,241.92/4,473.81 = 1,985.16/x
  3. Step 3: Cross multiply
    3,241.92x = 4,473.81 × 1,985.16
  4. Step 4: Simplify right side
    3,241.92x = 8,881,228.66
  5. Step 5: Solve for x
    x = 8,881,228.66/3,241.92
  6. Step 6: Final answer
    x = 2,739.50

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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.