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Finding the Fourth Proportional to 25,131.70, 37,716.27 and 9,579.70

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Solution

The fourth proportional to 25,131.70, 37,716.27 and 9,579.70 is: 14,376.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,131.70 : 37,716.27 = 9,579.70 : x
  2. Step 2: Convert to fraction form
    25,131.70/37,716.27 = 9,579.70/x
  3. Step 3: Cross multiply
    25,131.70x = 37,716.27 × 9,579.70
  4. Step 4: Simplify right side
    25,131.70x = 361,310,551.72
  5. Step 5: Solve for x
    x = 361,310,551.72/25,131.70
  6. Step 6: Final answer
    x = 14,376.69

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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.