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Finding the Fourth Proportional to 5,969.61, 8,947.98 and 3,778.95

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Solution

The fourth proportional to 5,969.61, 8,947.98 and 3,778.95 is: 5,664.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,969.61 : 8,947.98 = 3,778.95 : x
  2. Step 2: Convert to fraction form
    5,969.61/8,947.98 = 3,778.95/x
  3. Step 3: Cross multiply
    5,969.61x = 8,947.98 × 3,778.95
  4. Step 4: Simplify right side
    5,969.61x = 33,813,969.02
  5. Step 5: Solve for x
    x = 33,813,969.02/5,969.61
  6. Step 6: Final answer
    x = 5,664.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.