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Finding the Fourth Proportional to 8,700.41, 13,052.23 and 3,956.91

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Solution

The fourth proportional to 8,700.41, 13,052.23 and 3,956.91 is: 5,936.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.41 : 13,052.23 = 3,956.91 : x
  2. Step 2: Convert to fraction form
    8,700.41/13,052.23 = 3,956.91/x
  3. Step 3: Cross multiply
    8,700.41x = 13,052.23 × 3,956.91
  4. Step 4: Simplify right side
    8,700.41x = 51,646,440.57
  5. Step 5: Solve for x
    x = 51,646,440.57/8,700.41
  6. Step 6: Final answer
    x = 5,936.09

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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.