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Finding the Fourth Proportional to 8,692.12, 13,039.44 and 3,497.68

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Solution

The fourth proportional to 8,692.12, 13,039.44 and 3,497.68 is: 5,247.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,692.12 : 13,039.44 = 3,497.68 : x
  2. Step 2: Convert to fraction form
    8,692.12/13,039.44 = 3,497.68/x
  3. Step 3: Cross multiply
    8,692.12x = 13,039.44 × 3,497.68
  4. Step 4: Simplify right side
    8,692.12x = 45,607,788.50
  5. Step 5: Solve for x
    x = 45,607,788.50/8,692.12
  6. Step 6: Final answer
    x = 5,247.03

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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.