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Finding the Fourth Proportional to 14,067.66, 19,412.59 and 7,692.99

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Solution

The fourth proportional to 14,067.66, 19,412.59 and 7,692.99 is: 10,615.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,067.66 : 19,412.59 = 7,692.99 : x
  2. Step 2: Convert to fraction form
    14,067.66/19,412.59 = 7,692.99/x
  3. Step 3: Cross multiply
    14,067.66x = 19,412.59 × 7,692.99
  4. Step 4: Simplify right side
    14,067.66x = 149,340,860.74
  5. Step 5: Solve for x
    x = 149,340,860.74/14,067.66
  6. Step 6: Final answer
    x = 10,615.90

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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.