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Finding the Fourth Proportional to 4,517.01, 6,805.62 and 4,078.76

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Solution

The fourth proportional to 4,517.01, 6,805.62 and 4,078.76 is: 6,145.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,517.01 : 6,805.62 = 4,078.76 : x
  2. Step 2: Convert to fraction form
    4,517.01/6,805.62 = 4,078.76/x
  3. Step 3: Cross multiply
    4,517.01x = 6,805.62 × 4,078.76
  4. Step 4: Simplify right side
    4,517.01x = 27,758,456.60
  5. Step 5: Solve for x
    x = 27,758,456.60/4,517.01
  6. Step 6: Final answer
    x = 6,145.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.