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Finding the Fourth Proportional to 63,675.26, 87,835.26 and 39,760.42

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Solution

The fourth proportional to 63,675.26, 87,835.26 and 39,760.42 is: 54,846.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,675.26 : 87,835.26 = 39,760.42 : x
  2. Step 2: Convert to fraction form
    63,675.26/87,835.26 = 39,760.42/x
  3. Step 3: Cross multiply
    63,675.26x = 87,835.26 × 39,760.42
  4. Step 4: Simplify right side
    63,675.26x = 3,492,366,828.41
  5. Step 5: Solve for x
    x = 3,492,366,828.41/63,675.26
  6. Step 6: Final answer
    x = 54,846.53

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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.