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Finding the Fourth Proportional to 8,352.81, 12,529.80 and 2,509.92

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Solution

The fourth proportional to 8,352.81, 12,529.80 and 2,509.92 is: 3,765.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,352.81 : 12,529.80 = 2,509.92 : x
  2. Step 2: Convert to fraction form
    8,352.81/12,529.80 = 2,509.92/x
  3. Step 3: Cross multiply
    8,352.81x = 12,529.80 × 2,509.92
  4. Step 4: Simplify right side
    8,352.81x = 31,448,795.62
  5. Step 5: Solve for x
    x = 31,448,795.62/8,352.81
  6. Step 6: Final answer
    x = 3,765.06

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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.