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Finding the Fourth Proportional to 8,495.70, 12,729.16 and 5,201.91

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Solution

The fourth proportional to 8,495.70, 12,729.16 and 5,201.91 is: 7,794.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,495.70 : 12,729.16 = 5,201.91 : x
  2. Step 2: Convert to fraction form
    8,495.70/12,729.16 = 5,201.91/x
  3. Step 3: Cross multiply
    8,495.70x = 12,729.16 × 5,201.91
  4. Step 4: Simplify right side
    8,495.70x = 66,215,951.20
  5. Step 5: Solve for x
    x = 66,215,951.20/8,495.70
  6. Step 6: Final answer
    x = 7,794.06

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1.5x scale

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.