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Finding the Fourth Proportional to 34,393.54, 47,462.09 and 20,959.89

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Solution

The fourth proportional to 34,393.54, 47,462.09 and 20,959.89 is: 28,924.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,393.54 : 47,462.09 = 20,959.89 : x
  2. Step 2: Convert to fraction form
    34,393.54/47,462.09 = 20,959.89/x
  3. Step 3: Cross multiply
    34,393.54x = 47,462.09 × 20,959.89
  4. Step 4: Simplify right side
    34,393.54x = 994,800,185.57
  5. Step 5: Solve for x
    x = 994,800,185.57/34,393.54
  6. Step 6: Final answer
    x = 28,924.04

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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.