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Finding the Fourth Proportional to 5,855.72, 8,778.72 and 4,562.96

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Solution

The fourth proportional to 5,855.72, 8,778.72 and 4,562.96 is: 6,840.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,855.72 : 8,778.72 = 4,562.96 : x
  2. Step 2: Convert to fraction form
    5,855.72/8,778.72 = 4,562.96/x
  3. Step 3: Cross multiply
    5,855.72x = 8,778.72 × 4,562.96
  4. Step 4: Simplify right side
    5,855.72x = 40,056,948.21
  5. Step 5: Solve for x
    x = 40,056,948.21/5,855.72
  6. Step 6: Final answer
    x = 6,840.65

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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.