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Finding the Fourth Proportional to 8,968.57, 13,454.90 and 2,729.46

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Solution

The fourth proportional to 8,968.57, 13,454.90 and 2,729.46 is: 4,094.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968.57 : 13,454.90 = 2,729.46 : x
  2. Step 2: Convert to fraction form
    8,968.57/13,454.90 = 2,729.46/x
  3. Step 3: Cross multiply
    8,968.57x = 13,454.90 × 2,729.46
  4. Step 4: Simplify right side
    8,968.57x = 36,724,658.40
  5. Step 5: Solve for x
    x = 36,724,658.40/8,968.57
  6. Step 6: Final answer
    x = 4,094.82

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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.