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Finding the Fourth Proportional to 2,664.68, 3,995.93 and 932.90

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Solution

The fourth proportional to 2,664.68, 3,995.93 and 932.90 is: 1,398.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664.68 : 3,995.93 = 932.90 : x
  2. Step 2: Convert to fraction form
    2,664.68/3,995.93 = 932.90/x
  3. Step 3: Cross multiply
    2,664.68x = 3,995.93 × 932.90
  4. Step 4: Simplify right side
    2,664.68x = 3,727,785.45
  5. Step 5: Solve for x
    x = 3,727,785.45/2,664.68
  6. Step 6: Final answer
    x = 1,398.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.