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Finding the Fourth Proportional to 3,333.72, 4,600.28 and 1,917.33

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Solution

The fourth proportional to 3,333.72, 4,600.28 and 1,917.33 is: 2,645.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,333.72 : 4,600.28 = 1,917.33 : x
  2. Step 2: Convert to fraction form
    3,333.72/4,600.28 = 1,917.33/x
  3. Step 3: Cross multiply
    3,333.72x = 4,600.28 × 1,917.33
  4. Step 4: Simplify right side
    3,333.72x = 8,820,254.85
  5. Step 5: Solve for x
    x = 8,820,254.85/3,333.72
  6. Step 6: Final answer
    x = 2,645.77

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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.