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Finding the Fourth Proportional to 12,843.92, 19,275.92 and 6,603.68

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Solution

The fourth proportional to 12,843.92, 19,275.92 and 6,603.68 is: 9,910.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,843.92 : 19,275.92 = 6,603.68 : x
  2. Step 2: Convert to fraction form
    12,843.92/19,275.92 = 6,603.68/x
  3. Step 3: Cross multiply
    12,843.92x = 19,275.92 × 6,603.68
  4. Step 4: Simplify right side
    12,843.92x = 127,292,007.39
  5. Step 5: Solve for x
    x = 127,292,007.39/12,843.92
  6. Step 6: Final answer
    x = 9,910.68

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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.