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Finding the Fourth Proportional to 1,906.93, 2,631.04 and 1,160.92

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Solution

The fourth proportional to 1,906.93, 2,631.04 and 1,160.92 is: 1,601.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.93 : 2,631.04 = 1,160.92 : x
  2. Step 2: Convert to fraction form
    1,906.93/2,631.04 = 1,160.92/x
  3. Step 3: Cross multiply
    1,906.93x = 2,631.04 × 1,160.92
  4. Step 4: Simplify right side
    1,906.93x = 3,054,426.96
  5. Step 5: Solve for x
    x = 3,054,426.96/1,906.93
  6. Step 6: Final answer
    x = 1,601.75

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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.