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Finding the Fourth Proportional to 33,855.76, 46,720.83 and 18,951.76

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Solution

The fourth proportional to 33,855.76, 46,720.83 and 18,951.76 is: 26,153.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,855.76 : 46,720.83 = 18,951.76 : x
  2. Step 2: Convert to fraction form
    33,855.76/46,720.83 = 18,951.76/x
  3. Step 3: Cross multiply
    33,855.76x = 46,720.83 × 18,951.76
  4. Step 4: Simplify right side
    33,855.76x = 885,441,957.16
  5. Step 5: Solve for x
    x = 885,441,957.16/33,855.76
  6. Step 6: Final answer
    x = 26,153.36

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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.