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Finding the Fourth Proportional to 1,472.70, 2,032.05 and 843.33

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Solution

The fourth proportional to 1,472.70, 2,032.05 and 843.33 is: 1,163.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472.70 : 2,032.05 = 843.33 : x
  2. Step 2: Convert to fraction form
    1,472.70/2,032.05 = 843.33/x
  3. Step 3: Cross multiply
    1,472.70x = 2,032.05 × 843.33
  4. Step 4: Simplify right side
    1,472.70x = 1,713,688.73
  5. Step 5: Solve for x
    x = 1,713,688.73/1,472.70
  6. Step 6: Final answer
    x = 1,163.64

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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.