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Finding the Fourth Proportional to 63,249.48, 94,878.72 and 18,872.64

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Solution

The fourth proportional to 63,249.48, 94,878.72 and 18,872.64 is: 28,310.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,249.48 : 94,878.72 = 18,872.64 : x
  2. Step 2: Convert to fraction form
    63,249.48/94,878.72 = 18,872.64/x
  3. Step 3: Cross multiply
    63,249.48x = 94,878.72 × 18,872.64
  4. Step 4: Simplify right side
    63,249.48x = 1,790,611,926.22
  5. Step 5: Solve for x
    x = 1,790,611,926.22/63,249.48
  6. Step 6: Final answer
    x = 28,310.30

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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.