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Finding the Fourth Proportional to 63,421.60, 87,520.84 and 34,741.03

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Solution

The fourth proportional to 63,421.60, 87,520.84 and 34,741.03 is: 47,942.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,421.60 : 87,520.84 = 34,741.03 : x
  2. Step 2: Convert to fraction form
    63,421.60/87,520.84 = 34,741.03/x
  3. Step 3: Cross multiply
    63,421.60x = 87,520.84 × 34,741.03
  4. Step 4: Simplify right side
    63,421.60x = 3,040,564,128.07
  5. Step 5: Solve for x
    x = 3,040,564,128.07/63,421.60
  6. Step 6: Final answer
    x = 47,942.09

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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.