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Finding the Fourth Proportional to 8,886.70, 13,325.57 and 2,961.49

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Solution

The fourth proportional to 8,886.70, 13,325.57 and 2,961.49 is: 4,440.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.70 : 13,325.57 = 2,961.49 : x
  2. Step 2: Convert to fraction form
    8,886.70/13,325.57 = 2,961.49/x
  3. Step 3: Cross multiply
    8,886.70x = 13,325.57 × 2,961.49
  4. Step 4: Simplify right side
    8,886.70x = 39,463,516.39
  5. Step 5: Solve for x
    x = 39,463,516.39/8,886.70
  6. Step 6: Final answer
    x = 4,440.74

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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.