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Finding the Fourth Proportional to 62,855.87, 94,286.57 and 20,739.58

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Solution

The fourth proportional to 62,855.87, 94,286.57 and 20,739.58 is: 31,110.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,855.87 : 94,286.57 = 20,739.58 : x
  2. Step 2: Convert to fraction form
    62,855.87/94,286.57 = 20,739.58/x
  3. Step 3: Cross multiply
    62,855.87x = 94,286.57 × 20,739.58
  4. Step 4: Simplify right side
    62,855.87x = 1,955,463,522.03
  5. Step 5: Solve for x
    x = 1,955,463,522.03/62,855.87
  6. Step 6: Final answer
    x = 31,110.28

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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.