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Finding the Fourth Proportional to 33,398.93, 46,098.11 and 20,821.25

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Solution

The fourth proportional to 33,398.93, 46,098.11 and 20,821.25 is: 28,738.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,398.93 : 46,098.11 = 20,821.25 : x
  2. Step 2: Convert to fraction form
    33,398.93/46,098.11 = 20,821.25/x
  3. Step 3: Cross multiply
    33,398.93x = 46,098.11 × 20,821.25
  4. Step 4: Simplify right side
    33,398.93x = 959,820,272.84
  5. Step 5: Solve for x
    x = 959,820,272.84/33,398.93
  6. Step 6: Final answer
    x = 28,738.05

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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.