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Finding the Fourth Proportional to 9,372.70, 14,063.10 and 4,755.70

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Solution

The fourth proportional to 9,372.70, 14,063.10 and 4,755.70 is: 7,135.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,372.70 : 14,063.10 = 4,755.70 : x
  2. Step 2: Convert to fraction form
    9,372.70/14,063.10 = 4,755.70/x
  3. Step 3: Cross multiply
    9,372.70x = 14,063.10 × 4,755.70
  4. Step 4: Simplify right side
    9,372.70x = 66,879,884.67
  5. Step 5: Solve for x
    x = 66,879,884.67/9,372.70
  6. Step 6: Final answer
    x = 7,135.60

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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.