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Finding the Fourth Proportional to 9,277.94, 12,796.50 and 7,986.60

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Solution

The fourth proportional to 9,277.94, 12,796.50 and 7,986.60 is: 11,015.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,277.94 : 12,796.50 = 7,986.60 : x
  2. Step 2: Convert to fraction form
    9,277.94/12,796.50 = 7,986.60/x
  3. Step 3: Cross multiply
    9,277.94x = 12,796.50 × 7,986.60
  4. Step 4: Simplify right side
    9,277.94x = 102,200,511.93
  5. Step 5: Solve for x
    x = 102,200,511.93/9,277.94
  6. Step 6: Final answer
    x = 11,015.43

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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.