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Finding the Fourth Proportional to 9,917.73, 14,855.54 and 7,448.85

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Solution

The fourth proportional to 9,917.73, 14,855.54 and 7,448.85 is: 11,157.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,917.73 : 14,855.54 = 7,448.85 : x
  2. Step 2: Convert to fraction form
    9,917.73/14,855.54 = 7,448.85/x
  3. Step 3: Cross multiply
    9,917.73x = 14,855.54 × 7,448.85
  4. Step 4: Simplify right side
    9,917.73x = 110,656,651.88
  5. Step 5: Solve for x
    x = 110,656,651.88/9,917.73
  6. Step 6: Final answer
    x = 11,157.46

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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.