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Finding the Fourth Proportional to 6,947.52, 9,587.64 and 3,803.76

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Solution

The fourth proportional to 6,947.52, 9,587.64 and 3,803.76 is: 5,249.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,947.52 : 9,587.64 = 3,803.76 : x
  2. Step 2: Convert to fraction form
    6,947.52/9,587.64 = 3,803.76/x
  3. Step 3: Cross multiply
    6,947.52x = 9,587.64 × 3,803.76
  4. Step 4: Simplify right side
    6,947.52x = 36,469,081.53
  5. Step 5: Solve for x
    x = 36,469,081.53/6,947.52
  6. Step 6: Final answer
    x = 5,249.22

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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.