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Finding the Fourth Proportional to 7,773.52, 11,658.42 and 3,091.50

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Solution

The fourth proportional to 7,773.52, 11,658.42 and 3,091.50 is: 4,636.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,773.52 : 11,658.42 = 3,091.50 : x
  2. Step 2: Convert to fraction form
    7,773.52/11,658.42 = 3,091.50/x
  3. Step 3: Cross multiply
    7,773.52x = 11,658.42 × 3,091.50
  4. Step 4: Simplify right side
    7,773.52x = 36,042,005.43
  5. Step 5: Solve for x
    x = 36,042,005.43/7,773.52
  6. Step 6: Final answer
    x = 4,636.51

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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.