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Finding the Fourth Proportional to 14,874.40, 22,299.76 and 7,372.68

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Solution

The fourth proportional to 14,874.40, 22,299.76 and 7,372.68 is: 11,053.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,874.40 : 22,299.76 = 7,372.68 : x
  2. Step 2: Convert to fraction form
    14,874.40/22,299.76 = 7,372.68/x
  3. Step 3: Cross multiply
    14,874.40x = 22,299.76 × 7,372.68
  4. Step 4: Simplify right side
    14,874.40x = 164,408,994.56
  5. Step 5: Solve for x
    x = 164,408,994.56/14,874.40
  6. Step 6: Final answer
    x = 11,053.15

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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.