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Finding the Fourth Proportional to 12,408.03, 18,612.03 and 3,174.03

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Solution

The fourth proportional to 12,408.03, 18,612.03 and 3,174.03 is: 4,761.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408.03 : 18,612.03 = 3,174.03 : x
  2. Step 2: Convert to fraction form
    12,408.03/18,612.03 = 3,174.03/x
  3. Step 3: Cross multiply
    12,408.03x = 18,612.03 × 3,174.03
  4. Step 4: Simplify right side
    12,408.03x = 59,075,141.58
  5. Step 5: Solve for x
    x = 59,075,141.58/12,408.03
  6. Step 6: Final answer
    x = 4,761.04

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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.