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Finding the Fourth Proportional to 3,333.39, 4,600.97 and 1,917.23

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Solution

The fourth proportional to 3,333.39, 4,600.97 and 1,917.23 is: 2,646.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,333.39 : 4,600.97 = 1,917.23 : x
  2. Step 2: Convert to fraction form
    3,333.39/4,600.97 = 1,917.23/x
  3. Step 3: Cross multiply
    3,333.39x = 4,600.97 × 1,917.23
  4. Step 4: Simplify right side
    3,333.39x = 8,821,102.38
  5. Step 5: Solve for x
    x = 8,821,102.38/3,333.39
  6. Step 6: Final answer
    x = 2,646.29

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Double scale
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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.