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Finding the Fourth Proportional to 12,098.45, 16,692.94 and 7,059.79

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Solution

The fourth proportional to 12,098.45, 16,692.94 and 7,059.79 is: 9,740.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,098.45 : 16,692.94 = 7,059.79 : x
  2. Step 2: Convert to fraction form
    12,098.45/16,692.94 = 7,059.79/x
  3. Step 3: Cross multiply
    12,098.45x = 16,692.94 × 7,059.79
  4. Step 4: Simplify right side
    12,098.45x = 117,848,640.86
  5. Step 5: Solve for x
    x = 117,848,640.86/12,098.45
  6. Step 6: Final answer
    x = 9,740.81

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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.