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Finding the Fourth Proportional to 8,448.86, 11,658.74 and 4,912.26

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Solution

The fourth proportional to 8,448.86, 11,658.74 and 4,912.26 is: 6,778.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,448.86 : 11,658.74 = 4,912.26 : x
  2. Step 2: Convert to fraction form
    8,448.86/11,658.74 = 4,912.26/x
  3. Step 3: Cross multiply
    8,448.86x = 11,658.74 × 4,912.26
  4. Step 4: Simplify right side
    8,448.86x = 57,270,762.15
  5. Step 5: Solve for x
    x = 57,270,762.15/8,448.86
  6. Step 6: Final answer
    x = 6,778.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.