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Finding the Fourth Proportional to 67,447.34, 101,162.13 and 20,696.30

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Solution

The fourth proportional to 67,447.34, 101,162.13 and 20,696.30 is: 31,041.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,447.34 : 101,162.13 = 20,696.30 : x
  2. Step 2: Convert to fraction form
    67,447.34/101,162.13 = 20,696.30/x
  3. Step 3: Cross multiply
    67,447.34x = 101,162.13 × 20,696.30
  4. Step 4: Simplify right side
    67,447.34x = 2,093,681,791.12
  5. Step 5: Solve for x
    x = 2,093,681,791.12/67,447.34
  6. Step 6: Final answer
    x = 31,041.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.