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Finding the Fourth Proportional to 6,220.95, 8,584.62 and 3,388.32

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Solution

The fourth proportional to 6,220.95, 8,584.62 and 3,388.32 is: 4,675.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,220.95 : 8,584.62 = 3,388.32 : x
  2. Step 2: Convert to fraction form
    6,220.95/8,584.62 = 3,388.32/x
  3. Step 3: Cross multiply
    6,220.95x = 8,584.62 × 3,388.32
  4. Step 4: Simplify right side
    6,220.95x = 29,087,439.64
  5. Step 5: Solve for x
    x = 29,087,439.64/6,220.95
  6. Step 6: Final answer
    x = 4,675.72

Related Problems

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Half scale
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Double scale
Find fourth proportional to 6,221.95, 8,586 and 3,389.32
Similar ratio
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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.