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Finding the Fourth Proportional to 28,959.75, 39,811.05 and 24,911.73

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Solution

The fourth proportional to 28,959.75, 39,811.05 and 24,911.73 is: 34,246.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,959.75 : 39,811.05 = 24,911.73 : x
  2. Step 2: Convert to fraction form
    28,959.75/39,811.05 = 24,911.73/x
  3. Step 3: Cross multiply
    28,959.75x = 39,811.05 × 24,911.73
  4. Step 4: Simplify right side
    28,959.75x = 991,762,128.62
  5. Step 5: Solve for x
    x = 991,762,128.62/28,959.75
  6. Step 6: Final answer
    x = 34,246.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.