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Finding the Fourth Proportional to 8,355.35, 11,530.35 and 4,578.66

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Solution

The fourth proportional to 8,355.35, 11,530.35 and 4,578.66 is: 6,318.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,355.35 : 11,530.35 = 4,578.66 : x
  2. Step 2: Convert to fraction form
    8,355.35/11,530.35 = 4,578.66/x
  3. Step 3: Cross multiply
    8,355.35x = 11,530.35 × 4,578.66
  4. Step 4: Simplify right side
    8,355.35x = 52,793,552.33
  5. Step 5: Solve for x
    x = 52,793,552.33/8,355.35
  6. Step 6: Final answer
    x = 6,318.53

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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.