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Finding the Fourth Proportional to 8,617.65, 12,926.20 and 2,461.65

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Solution

The fourth proportional to 8,617.65, 12,926.20 and 2,461.65 is: 3,692.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,617.65 : 12,926.20 = 2,461.65 : x
  2. Step 2: Convert to fraction form
    8,617.65/12,926.20 = 2,461.65/x
  3. Step 3: Cross multiply
    8,617.65x = 12,926.20 × 2,461.65
  4. Step 4: Simplify right side
    8,617.65x = 31,819,709.44
  5. Step 5: Solve for x
    x = 31,819,709.44/8,617.65
  6. Step 6: Final answer
    x = 3,692.39

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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.