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Finding the Fourth Proportional to 19,251.91, 28,866.93 and 7,558.75

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Solution

The fourth proportional to 19,251.91, 28,866.93 and 7,558.75 is: 11,333.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,251.91 : 28,866.93 = 7,558.75 : x
  2. Step 2: Convert to fraction form
    19,251.91/28,866.93 = 7,558.75/x
  3. Step 3: Cross multiply
    19,251.91x = 28,866.93 × 7,558.75
  4. Step 4: Simplify right side
    19,251.91x = 218,197,907.14
  5. Step 5: Solve for x
    x = 218,197,907.14/19,251.91
  6. Step 6: Final answer
    x = 11,333.83

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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.