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Finding the Fourth Proportional to 11,692.40, 17,519.40 and 9,964.40

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Solution

The fourth proportional to 11,692.40, 17,519.40 and 9,964.40 is: 14,930.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,692.40 : 17,519.40 = 9,964.40 : x
  2. Step 2: Convert to fraction form
    11,692.40/17,519.40 = 9,964.40/x
  3. Step 3: Cross multiply
    11,692.40x = 17,519.40 × 9,964.40
  4. Step 4: Simplify right side
    11,692.40x = 174,570,309.36
  5. Step 5: Solve for x
    x = 174,570,309.36/11,692.40
  6. Step 6: Final answer
    x = 14,930.24

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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.