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Finding the Fourth Proportional to 6,155.94, 8,489.83 and 4,001.57

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Solution

The fourth proportional to 6,155.94, 8,489.83 and 4,001.57 is: 5,518.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,155.94 : 8,489.83 = 4,001.57 : x
  2. Step 2: Convert to fraction form
    6,155.94/8,489.83 = 4,001.57/x
  3. Step 3: Cross multiply
    6,155.94x = 8,489.83 × 4,001.57
  4. Step 4: Simplify right side
    6,155.94x = 33,972,648.84
  5. Step 5: Solve for x
    x = 33,972,648.84/6,155.94
  6. Step 6: Final answer
    x = 5,518.68

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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.