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Finding the Fourth Proportional to 8,950.60, 13,425.90 and 3,107.26

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Solution

The fourth proportional to 8,950.60, 13,425.90 and 3,107.26 is: 4,660.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,950.60 : 13,425.90 = 3,107.26 : x
  2. Step 2: Convert to fraction form
    8,950.60/13,425.90 = 3,107.26/x
  3. Step 3: Cross multiply
    8,950.60x = 13,425.90 × 3,107.26
  4. Step 4: Simplify right side
    8,950.60x = 41,717,728.47
  5. Step 5: Solve for x
    x = 41,717,728.47/8,950.60
  6. Step 6: Final answer
    x = 4,660.89

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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.