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Finding the Fourth Proportional to 19,251.92, 28,866.94 and 7,558.76

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Solution

The fourth proportional to 19,251.92, 28,866.94 and 7,558.76 is: 11,333.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,251.92 : 28,866.94 = 7,558.76 : x
  2. Step 2: Convert to fraction form
    19,251.92/28,866.94 = 7,558.76/x
  3. Step 3: Cross multiply
    19,251.92x = 28,866.94 × 7,558.76
  4. Step 4: Simplify right side
    19,251.92x = 218,198,271.39
  5. Step 5: Solve for x
    x = 218,198,271.39/19,251.92
  6. Step 6: Final answer
    x = 11,333.84

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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.