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Finding the Fourth Proportional to 34,754.88, 47,958.72 and 20,605.44

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Solution

The fourth proportional to 34,754.88, 47,958.72 and 20,605.44 is: 28,433.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,754.88 : 47,958.72 = 20,605.44 : x
  2. Step 2: Convert to fraction form
    34,754.88/47,958.72 = 20,605.44/x
  3. Step 3: Cross multiply
    34,754.88x = 47,958.72 × 20,605.44
  4. Step 4: Simplify right side
    34,754.88x = 988,210,527.44
  5. Step 5: Solve for x
    x = 988,210,527.44/34,754.88
  6. Step 6: Final answer
    x = 28,433.72

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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.