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Finding the Fourth Proportional to 8,372.70, 12,560.69 and 2,529.66

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Solution

The fourth proportional to 8,372.70, 12,560.69 and 2,529.66 is: 3,794.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,372.70 : 12,560.69 = 2,529.66 : x
  2. Step 2: Convert to fraction form
    8,372.70/12,560.69 = 2,529.66/x
  3. Step 3: Cross multiply
    8,372.70x = 12,560.69 × 2,529.66
  4. Step 4: Simplify right side
    8,372.70x = 31,774,275.07
  5. Step 5: Solve for x
    x = 31,774,275.07/8,372.70
  6. Step 6: Final answer
    x = 3,794.99

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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.