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Finding the Fourth Proportional to 6,294.25, 8,685.11 and 3,605.05

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Solution

The fourth proportional to 6,294.25, 8,685.11 and 3,605.05 is: 4,974.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,294.25 : 8,685.11 = 3,605.05 : x
  2. Step 2: Convert to fraction form
    6,294.25/8,685.11 = 3,605.05/x
  3. Step 3: Cross multiply
    6,294.25x = 8,685.11 × 3,605.05
  4. Step 4: Simplify right side
    6,294.25x = 31,310,255.81
  5. Step 5: Solve for x
    x = 31,310,255.81/6,294.25
  6. Step 6: Final answer
    x = 4,974.42

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Half 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.