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Finding the Fourth Proportional to 12,069.92, 16,654.87 and 6,965.63

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Solution

The fourth proportional to 12,069.92, 16,654.87 and 6,965.63 is: 9,611.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,069.92 : 16,654.87 = 6,965.63 : x
  2. Step 2: Convert to fraction form
    12,069.92/16,654.87 = 6,965.63/x
  3. Step 3: Cross multiply
    12,069.92x = 16,654.87 × 6,965.63
  4. Step 4: Simplify right side
    12,069.92x = 116,011,662.12
  5. Step 5: Solve for x
    x = 116,011,662.12/12,069.92
  6. Step 6: Final answer
    x = 9,611.63

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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.