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Finding the Fourth Proportional to 51,391.57, 70,932.21 and 33,455.33

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Solution

The fourth proportional to 51,391.57, 70,932.21 and 33,455.33 is: 46,176.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,391.57 : 70,932.21 = 33,455.33 : x
  2. Step 2: Convert to fraction form
    51,391.57/70,932.21 = 33,455.33/x
  3. Step 3: Cross multiply
    51,391.57x = 70,932.21 × 33,455.33
  4. Step 4: Simplify right side
    51,391.57x = 2,373,060,493.18
  5. Step 5: Solve for x
    x = 2,373,060,493.18/51,391.57
  6. Step 6: Final answer
    x = 46,176.07

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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.