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Finding the Fourth Proportional to 9,757.70, 14,631.15 and 3,907.70

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Solution

The fourth proportional to 9,757.70, 14,631.15 and 3,907.70 is: 5,859.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,757.70 : 14,631.15 = 3,907.70 : x
  2. Step 2: Convert to fraction form
    9,757.70/14,631.15 = 3,907.70/x
  3. Step 3: Cross multiply
    9,757.70x = 14,631.15 × 3,907.70
  4. Step 4: Simplify right side
    9,757.70x = 57,174,144.86
  5. Step 5: Solve for x
    x = 57,174,144.86/9,757.70
  6. Step 6: Final answer
    x = 5,859.39

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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.