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Finding the Fourth Proportional to 19,296.73, 28,944.60 and 8,908.48

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Solution

The fourth proportional to 19,296.73, 28,944.60 and 8,908.48 is: 13,362.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,296.73 : 28,944.60 = 8,908.48 : x
  2. Step 2: Convert to fraction form
    19,296.73/28,944.60 = 8,908.48/x
  3. Step 3: Cross multiply
    19,296.73x = 28,944.60 × 8,908.48
  4. Step 4: Simplify right side
    19,296.73x = 257,852,390.21
  5. Step 5: Solve for x
    x = 257,852,390.21/19,296.73
  6. Step 6: Final answer
    x = 13,362.49

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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.