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Finding the Fourth Proportional to 8,708.91, 13,064.94 and 3,170.01

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Solution

The fourth proportional to 8,708.91, 13,064.94 and 3,170.01 is: 4,755.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.91 : 13,064.94 = 3,170.01 : x
  2. Step 2: Convert to fraction form
    8,708.91/13,064.94 = 3,170.01/x
  3. Step 3: Cross multiply
    8,708.91x = 13,064.94 × 3,170.01
  4. Step 4: Simplify right side
    8,708.91x = 41,415,990.45
  5. Step 5: Solve for x
    x = 41,415,990.45/8,708.91
  6. Step 6: Final answer
    x = 4,755.59

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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.