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Finding the Fourth Proportional to 19,055.52, 28,583.29 and 7,956.15

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Solution

The fourth proportional to 19,055.52, 28,583.29 and 7,956.15 is: 11,934.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,055.52 : 28,583.29 = 7,956.15 : x
  2. Step 2: Convert to fraction form
    19,055.52/28,583.29 = 7,956.15/x
  3. Step 3: Cross multiply
    19,055.52x = 28,583.29 × 7,956.15
  4. Step 4: Simplify right side
    19,055.52x = 227,412,942.73
  5. Step 5: Solve for x
    x = 227,412,942.73/19,055.52
  6. Step 6: Final answer
    x = 11,934.23

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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.