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Finding the Fourth Proportional to 13,069.97, 18,036.92 and 7,692.74

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Solution

The fourth proportional to 13,069.97, 18,036.92 and 7,692.74 is: 10,616.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,069.97 : 18,036.92 = 7,692.74 : x
  2. Step 2: Convert to fraction form
    13,069.97/18,036.92 = 7,692.74/x
  3. Step 3: Cross multiply
    13,069.97x = 18,036.92 × 7,692.74
  4. Step 4: Simplify right side
    13,069.97x = 138,753,335.96
  5. Step 5: Solve for x
    x = 138,753,335.96/13,069.97
  6. Step 6: Final answer
    x = 10,616.19

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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.