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Finding the Fourth Proportional to 5,811.55, 8,717.42 and 1,651.57

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Solution

The fourth proportional to 5,811.55, 8,717.42 and 1,651.57 is: 2,477.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.55 : 8,717.42 = 1,651.57 : x
  2. Step 2: Convert to fraction form
    5,811.55/8,717.42 = 1,651.57/x
  3. Step 3: Cross multiply
    5,811.55x = 8,717.42 × 1,651.57
  4. Step 4: Simplify right side
    5,811.55x = 14,397,429.35
  5. Step 5: Solve for x
    x = 14,397,429.35/5,811.55
  6. Step 6: Final answer
    x = 2,477.38

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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.