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Finding the Fourth Proportional to 5,855.15, 8,782.97 and 1,695.57

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Solution

The fourth proportional to 5,855.15, 8,782.97 and 1,695.57 is: 2,543.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,855.15 : 8,782.97 = 1,695.57 : x
  2. Step 2: Convert to fraction form
    5,855.15/8,782.97 = 1,695.57/x
  3. Step 3: Cross multiply
    5,855.15x = 8,782.97 × 1,695.57
  4. Step 4: Simplify right side
    5,855.15x = 14,892,131.97
  5. Step 5: Solve for x
    x = 14,892,131.97/5,855.15
  6. Step 6: Final answer
    x = 2,543.43

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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.