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Finding the Fourth Proportional to 2,793.66, 4,188.15 and 2,180.07

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Solution

The fourth proportional to 2,793.66, 4,188.15 and 2,180.07 is: 3,268.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,793.66 : 4,188.15 = 2,180.07 : x
  2. Step 2: Convert to fraction form
    2,793.66/4,188.15 = 2,180.07/x
  3. Step 3: Cross multiply
    2,793.66x = 4,188.15 × 2,180.07
  4. Step 4: Simplify right side
    2,793.66x = 9,130,460.17
  5. Step 5: Solve for x
    x = 9,130,460.17/2,793.66
  6. Step 6: Final answer
    x = 3,268.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.