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Finding the Fourth Proportional to 8,068.70, 12,100.32 and 3,069.89

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Solution

The fourth proportional to 8,068.70, 12,100.32 and 3,069.89 is: 4,603.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,068.70 : 12,100.32 = 3,069.89 : x
  2. Step 2: Convert to fraction form
    8,068.70/12,100.32 = 3,069.89/x
  3. Step 3: Cross multiply
    8,068.70x = 12,100.32 × 3,069.89
  4. Step 4: Simplify right side
    8,068.70x = 37,146,590.86
  5. Step 5: Solve for x
    x = 37,146,590.86/8,068.70
  6. Step 6: Final answer
    x = 4,603.79

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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.