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Finding the Fourth Proportional to 5,774.12, 8,661.26 and 1,613.89

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Solution

The fourth proportional to 5,774.12, 8,661.26 and 1,613.89 is: 2,420.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,774.12 : 8,661.26 = 1,613.89 : x
  2. Step 2: Convert to fraction form
    5,774.12/8,661.26 = 1,613.89/x
  3. Step 3: Cross multiply
    5,774.12x = 8,661.26 × 1,613.89
  4. Step 4: Simplify right side
    5,774.12x = 13,978,269.53
  5. Step 5: Solve for x
    x = 13,978,269.53/5,774.12
  6. Step 6: Final answer
    x = 2,420.85

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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.