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Finding the Fourth Proportional to 3,392.81, 5,088.44 and 927.83

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Solution

The fourth proportional to 3,392.81, 5,088.44 and 927.83 is: 1,391.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.81 : 5,088.44 = 927.83 : x
  2. Step 2: Convert to fraction form
    3,392.81/5,088.44 = 927.83/x
  3. Step 3: Cross multiply
    3,392.81x = 5,088.44 × 927.83
  4. Step 4: Simplify right side
    3,392.81x = 4,721,177.20
  5. Step 5: Solve for x
    x = 4,721,177.20/3,392.81
  6. Step 6: Final answer
    x = 1,391.53

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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.