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Finding the Fourth Proportional to 61,651.44, 84,990.60 and 41,472.72

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Solution

The fourth proportional to 61,651.44, 84,990.60 and 41,472.72 is: 57,172.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,651.44 : 84,990.60 = 41,472.72 : x
  2. Step 2: Convert to fraction form
    61,651.44/84,990.60 = 41,472.72/x
  3. Step 3: Cross multiply
    61,651.44x = 84,990.60 × 41,472.72
  4. Step 4: Simplify right side
    61,651.44x = 3,524,791,356.43
  5. Step 5: Solve for x
    x = 3,524,791,356.43/61,651.44
  6. Step 6: Final answer
    x = 57,172.90

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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.