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Finding the Fourth Proportional to 12,095.28, 16,690.95 and 6,789.99

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Solution

The fourth proportional to 12,095.28, 16,690.95 and 6,789.99 is: 9,369.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,095.28 : 16,690.95 = 6,789.99 : x
  2. Step 2: Convert to fraction form
    12,095.28/16,690.95 = 6,789.99/x
  3. Step 3: Cross multiply
    12,095.28x = 16,690.95 × 6,789.99
  4. Step 4: Simplify right side
    12,095.28x = 113,331,383.59
  5. Step 5: Solve for x
    x = 113,331,383.59/12,095.28
  6. Step 6: Final answer
    x = 9,369.89

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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.