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Finding the Fourth Proportional to 31,209.22, 46,806.90 and 9,017.74

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Solution

The fourth proportional to 31,209.22, 46,806.90 and 9,017.74 is: 13,524.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,209.22 : 46,806.90 = 9,017.74 : x
  2. Step 2: Convert to fraction form
    31,209.22/46,806.90 = 9,017.74/x
  3. Step 3: Cross multiply
    31,209.22x = 46,806.90 × 9,017.74
  4. Step 4: Simplify right side
    31,209.22x = 422,092,454.41
  5. Step 5: Solve for x
    x = 422,092,454.41/31,209.22
  6. Step 6: Final answer
    x = 13,524.61

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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.