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Finding the Fourth Proportional to 19,262.88, 28,894.32 and 5,222.93

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Solution

The fourth proportional to 19,262.88, 28,894.32 and 5,222.93 is: 7,834.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,262.88 : 28,894.32 = 5,222.93 : x
  2. Step 2: Convert to fraction form
    19,262.88/28,894.32 = 5,222.93/x
  3. Step 3: Cross multiply
    19,262.88x = 28,894.32 × 5,222.93
  4. Step 4: Simplify right side
    19,262.88x = 150,912,866.29
  5. Step 5: Solve for x
    x = 150,912,866.29/19,262.88
  6. Step 6: Final answer
    x = 7,834.39

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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.