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Finding the Fourth Proportional to 12,461.69, 18,692.60 and 3,696.68

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Solution

The fourth proportional to 12,461.69, 18,692.60 and 3,696.68 is: 5,545.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,461.69 : 18,692.60 = 3,696.68 : x
  2. Step 2: Convert to fraction form
    12,461.69/18,692.60 = 3,696.68/x
  3. Step 3: Cross multiply
    12,461.69x = 18,692.60 × 3,696.68
  4. Step 4: Simplify right side
    12,461.69x = 69,100,448.62
  5. Step 5: Solve for x
    x = 69,100,448.62/12,461.69
  6. Step 6: Final answer
    x = 5,545.03

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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.