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Finding the Fourth Proportional to 14,069.67, 19,415.36 and 7,694.99

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Solution

The fourth proportional to 14,069.67, 19,415.36 and 7,694.99 is: 10,618.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,069.67 : 19,415.36 = 7,694.99 : x
  2. Step 2: Convert to fraction form
    14,069.67/19,415.36 = 7,694.99/x
  3. Step 3: Cross multiply
    14,069.67x = 19,415.36 × 7,694.99
  4. Step 4: Simplify right side
    14,069.67x = 149,400,865.49
  5. Step 5: Solve for x
    x = 149,400,865.49/14,069.67
  6. Step 6: Final answer
    x = 10,618.65

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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.