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Finding the Fourth Proportional to 34,566.25, 47,704.05 and 20,958.25

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Solution

The fourth proportional to 34,566.25, 47,704.05 and 20,958.25 is: 28,923.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,566.25 : 47,704.05 = 20,958.25 : x
  2. Step 2: Convert to fraction form
    34,566.25/47,704.05 = 20,958.25/x
  3. Step 3: Cross multiply
    34,566.25x = 47,704.05 × 20,958.25
  4. Step 4: Simplify right side
    34,566.25x = 999,793,062.60
  5. Step 5: Solve for x
    x = 999,793,062.60/34,566.25
  6. Step 6: Final answer
    x = 28,923.97

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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.