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Finding the Fourth Proportional to 15,872.61, 23,811.21 and 8,473.02

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Solution

The fourth proportional to 15,872.61, 23,811.21 and 8,473.02 is: 12,710.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,872.61 : 23,811.21 = 8,473.02 : x
  2. Step 2: Convert to fraction form
    15,872.61/23,811.21 = 8,473.02/x
  3. Step 3: Cross multiply
    15,872.61x = 23,811.21 × 8,473.02
  4. Step 4: Simplify right side
    15,872.61x = 201,752,858.55
  5. Step 5: Solve for x
    x = 201,752,858.55/15,872.61
  6. Step 6: Final answer
    x = 12,710.76

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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.