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Finding the Fourth Proportional to 5,773.95, 8,661.12 and 1,878.39

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Solution

The fourth proportional to 5,773.95, 8,661.12 and 1,878.39 is: 2,817.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,773.95 : 8,661.12 = 1,878.39 : x
  2. Step 2: Convert to fraction form
    5,773.95/8,661.12 = 1,878.39/x
  3. Step 3: Cross multiply
    5,773.95x = 8,661.12 × 1,878.39
  4. Step 4: Simplify right side
    5,773.95x = 16,268,961.20
  5. Step 5: Solve for x
    x = 16,268,961.20/5,773.95
  6. Step 6: Final answer
    x = 2,817.65

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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.