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Finding the Fourth Proportional to 5,861.65, 8,791.53 and 2,165.62

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Solution

The fourth proportional to 5,861.65, 8,791.53 and 2,165.62 is: 3,248.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,861.65 : 8,791.53 = 2,165.62 : x
  2. Step 2: Convert to fraction form
    5,861.65/8,791.53 = 2,165.62/x
  3. Step 3: Cross multiply
    5,861.65x = 8,791.53 × 2,165.62
  4. Step 4: Simplify right side
    5,861.65x = 19,039,113.20
  5. Step 5: Solve for x
    x = 19,039,113.20/5,861.65
  6. Step 6: Final answer
    x = 3,248.08

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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.