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Finding the Fourth Proportional to 13,692.03, 18,895.68 and 8,026.71

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Solution

The fourth proportional to 13,692.03, 18,895.68 and 8,026.71 is: 11,077.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,692.03 : 18,895.68 = 8,026.71 : x
  2. Step 2: Convert to fraction form
    13,692.03/18,895.68 = 8,026.71/x
  3. Step 3: Cross multiply
    13,692.03x = 18,895.68 × 8,026.71
  4. Step 4: Simplify right side
    13,692.03x = 151,670,143.61
  5. Step 5: Solve for x
    x = 151,670,143.61/13,692.03
  6. Step 6: Final answer
    x = 11,077.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.