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Finding the Fourth Proportional to 8,475.69, 11,692.29 and 7,355.05

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Solution

The fourth proportional to 8,475.69, 11,692.29 and 7,355.05 is: 10,146.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,475.69 : 11,692.29 = 7,355.05 : x
  2. Step 2: Convert to fraction form
    8,475.69/11,692.29 = 7,355.05/x
  3. Step 3: Cross multiply
    8,475.69x = 11,692.29 × 7,355.05
  4. Step 4: Simplify right side
    8,475.69x = 85,997,377.56
  5. Step 5: Solve for x
    x = 85,997,377.56/8,475.69
  6. Step 6: Final answer
    x = 10,146.36

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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.