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Finding the Fourth Proportional to 48,704.29, 73,020.79 and 15,405.73

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Solution

The fourth proportional to 48,704.29, 73,020.79 and 15,405.73 is: 23,097.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,704.29 : 73,020.79 = 15,405.73 : x
  2. Step 2: Convert to fraction form
    48,704.29/73,020.79 = 15,405.73/x
  3. Step 3: Cross multiply
    48,704.29x = 73,020.79 × 15,405.73
  4. Step 4: Simplify right side
    48,704.29x = 1,124,938,411.83
  5. Step 5: Solve for x
    x = 1,124,938,411.83/48,704.29
  6. Step 6: Final answer
    x = 23,097.32

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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.