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Finding the Fourth Proportional to 8,567.25, 12,855.74 and 3,950.25

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Solution

The fourth proportional to 8,567.25, 12,855.74 and 3,950.25 is: 5,927.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,567.25 : 12,855.74 = 3,950.25 : x
  2. Step 2: Convert to fraction form
    8,567.25/12,855.74 = 3,950.25/x
  3. Step 3: Cross multiply
    8,567.25x = 12,855.74 × 3,950.25
  4. Step 4: Simplify right side
    8,567.25x = 50,783,367.18
  5. Step 5: Solve for x
    x = 50,783,367.18/8,567.25
  6. Step 6: Final answer
    x = 5,927.62

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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.