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Finding the Fourth Proportional to 8,618.61, 12,926.37 and 2,293.52

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Solution

The fourth proportional to 8,618.61, 12,926.37 and 2,293.52 is: 3,439.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,618.61 : 12,926.37 = 2,293.52 : x
  2. Step 2: Convert to fraction form
    8,618.61/12,926.37 = 2,293.52/x
  3. Step 3: Cross multiply
    8,618.61x = 12,926.37 × 2,293.52
  4. Step 4: Simplify right side
    8,618.61x = 29,646,941.16
  5. Step 5: Solve for x
    x = 29,646,941.16/8,618.61
  6. Step 6: Final answer
    x = 3,439.87

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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.