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Finding the Fourth Proportional to 8,573.85, 12,860.75 and 2,730.44

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Solution

The fourth proportional to 8,573.85, 12,860.75 and 2,730.44 is: 4,095.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,573.85 : 12,860.75 = 2,730.44 : x
  2. Step 2: Convert to fraction form
    8,573.85/12,860.75 = 2,730.44/x
  3. Step 3: Cross multiply
    8,573.85x = 12,860.75 × 2,730.44
  4. Step 4: Simplify right side
    8,573.85x = 35,115,545.21
  5. Step 5: Solve for x
    x = 35,115,545.21/8,573.85
  6. Step 6: Final answer
    x = 4,095.66

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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.