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Finding the Fourth Proportional to 9,692.88, 14,546.64 and 7,102.56

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Solution

The fourth proportional to 9,692.88, 14,546.64 and 7,102.56 is: 10,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,692.88 : 14,546.64 = 7,102.56 : x
  2. Step 2: Convert to fraction form
    9,692.88/14,546.64 = 7,102.56/x
  3. Step 3: Cross multiply
    9,692.88x = 14,546.64 × 7,102.56
  4. Step 4: Simplify right side
    9,692.88x = 103,318,383.40
  5. Step 5: Solve for x
    x = 103,318,383.40/9,692.88
  6. Step 6: Final answer
    x = 10,659.20

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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.