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Finding the Fourth Proportional to 3,231.76, 4,847.54 and 923.26

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Solution

The fourth proportional to 3,231.76, 4,847.54 and 923.26 is: 1,384.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.76 : 4,847.54 = 923.26 : x
  2. Step 2: Convert to fraction form
    3,231.76/4,847.54 = 923.26/x
  3. Step 3: Cross multiply
    3,231.76x = 4,847.54 × 923.26
  4. Step 4: Simplify right side
    3,231.76x = 4,475,535.16
  5. Step 5: Solve for x
    x = 4,475,535.16/3,231.76
  6. Step 6: Final answer
    x = 1,384.86

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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.