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Finding the Fourth Proportional to 11,408.90, 17,115.98 and 4,835.34

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Solution

The fourth proportional to 11,408.90, 17,115.98 and 4,835.34 is: 7,254.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,408.90 : 17,115.98 = 4,835.34 : x
  2. Step 2: Convert to fraction form
    11,408.90/17,115.98 = 4,835.34/x
  3. Step 3: Cross multiply
    11,408.90x = 17,115.98 × 4,835.34
  4. Step 4: Simplify right side
    11,408.90x = 82,761,558.56
  5. Step 5: Solve for x
    x = 82,761,558.56/11,408.90
  6. Step 6: Final answer
    x = 7,254.13

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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.