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Finding the Fourth Proportional to 64,311.81, 88,751.52 and 36,017.43

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Solution

The fourth proportional to 64,311.81, 88,751.52 and 36,017.43 is: 49,704.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,311.81 : 88,751.52 = 36,017.43 : x
  2. Step 2: Convert to fraction form
    64,311.81/88,751.52 = 36,017.43/x
  3. Step 3: Cross multiply
    64,311.81x = 88,751.52 × 36,017.43
  4. Step 4: Simplify right side
    64,311.81x = 3,196,601,658.99
  5. Step 5: Solve for x
    x = 3,196,601,658.99/64,311.81
  6. Step 6: Final answer
    x = 49,704.74

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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.