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Finding the Fourth Proportional to 12,893.92, 19,358.84 and 6,658.44

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Solution

The fourth proportional to 12,893.92, 19,358.84 and 6,658.44 is: 9,996.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,893.92 : 19,358.84 = 6,658.44 : x
  2. Step 2: Convert to fraction form
    12,893.92/19,358.84 = 6,658.44/x
  3. Step 3: Cross multiply
    12,893.92x = 19,358.84 × 6,658.44
  4. Step 4: Simplify right side
    12,893.92x = 128,899,618.66
  5. Step 5: Solve for x
    x = 128,899,618.66/12,893.92
  6. Step 6: Final answer
    x = 9,996.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.