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Finding the Fourth Proportional to 7,773.42, 11,661.28 and 2,506.70

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Solution

The fourth proportional to 7,773.42, 11,661.28 and 2,506.70 is: 3,760.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,773.42 : 11,661.28 = 2,506.70 : x
  2. Step 2: Convert to fraction form
    7,773.42/11,661.28 = 2,506.70/x
  3. Step 3: Cross multiply
    7,773.42x = 11,661.28 × 2,506.70
  4. Step 4: Simplify right side
    7,773.42x = 29,231,262.87
  5. Step 5: Solve for x
    x = 29,231,262.87/7,773.42
  6. Step 6: Final answer
    x = 3,760.41

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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.