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Finding the Fourth Proportional to 6,392.75, 8,822.13 and 3,598.25

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Solution

The fourth proportional to 6,392.75, 8,822.13 and 3,598.25 is: 4,965.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,392.75 : 8,822.13 = 3,598.25 : x
  2. Step 2: Convert to fraction form
    6,392.75/8,822.13 = 3,598.25/x
  3. Step 3: Cross multiply
    6,392.75x = 8,822.13 × 3,598.25
  4. Step 4: Simplify right side
    6,392.75x = 31,744,229.27
  5. Step 5: Solve for x
    x = 31,744,229.27/6,392.75
  6. Step 6: Final answer
    x = 4,965.66

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Half scale
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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.