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Finding the Fourth Proportional to 31,215.44, 46,745.88 and 28,593.68

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Solution

The fourth proportional to 31,215.44, 46,745.88 and 28,593.68 is: 42,819.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,215.44 : 46,745.88 = 28,593.68 : x
  2. Step 2: Convert to fraction form
    31,215.44/46,745.88 = 28,593.68/x
  3. Step 3: Cross multiply
    31,215.44x = 46,745.88 × 28,593.68
  4. Step 4: Simplify right side
    31,215.44x = 1,336,636,734.04
  5. Step 5: Solve for x
    x = 1,336,636,734.04/31,215.44
  6. Step 6: Final answer
    x = 42,819.73

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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.