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Finding the Fourth Proportional to 63,064.64, 87,064.80 and 41,872.88

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Solution

The fourth proportional to 63,064.64, 87,064.80 and 41,872.88 is: 57,808.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,064.64 : 87,064.80 = 41,872.88 : x
  2. Step 2: Convert to fraction form
    63,064.64/87,064.80 = 41,872.88/x
  3. Step 3: Cross multiply
    63,064.64x = 87,064.80 × 41,872.88
  4. Step 4: Simplify right side
    63,064.64x = 3,645,653,922.62
  5. Step 5: Solve for x
    x = 3,645,653,922.62/63,064.64
  6. Step 6: Final answer
    x = 57,808.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.