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Finding the Fourth Proportional to 8,984.79, 13,486.77 and 7,951.37

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Solution

The fourth proportional to 8,984.79, 13,486.77 and 7,951.37 is: 11,935.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,984.79 : 13,486.77 = 7,951.37 : x
  2. Step 2: Convert to fraction form
    8,984.79/13,486.77 = 7,951.37/x
  3. Step 3: Cross multiply
    8,984.79x = 13,486.77 × 7,951.37
  4. Step 4: Simplify right side
    8,984.79x = 107,238,230.94
  5. Step 5: Solve for x
    x = 107,238,230.94/8,984.79
  6. Step 6: Final answer
    x = 11,935.53

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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.