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Finding the Fourth Proportional to 65,656.44, 98,450.64 and 39,013.92

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Solution

The fourth proportional to 65,656.44, 98,450.64 and 39,013.92 is: 58,500.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,656.44 : 98,450.64 = 39,013.92 : x
  2. Step 2: Convert to fraction form
    65,656.44/98,450.64 = 39,013.92/x
  3. Step 3: Cross multiply
    65,656.44x = 98,450.64 × 39,013.92
  4. Step 4: Simplify right side
    65,656.44x = 3,840,945,392.91
  5. Step 5: Solve for x
    x = 3,840,945,392.91/65,656.44
  6. Step 6: Final answer
    x = 58,500.66

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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.