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Finding the Fourth Proportional to 48,647.62, 72,942.18 and 19,030.18

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Solution

The fourth proportional to 48,647.62, 72,942.18 and 19,030.18 is: 28,533.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,647.62 : 72,942.18 = 19,030.18 : x
  2. Step 2: Convert to fraction form
    48,647.62/72,942.18 = 19,030.18/x
  3. Step 3: Cross multiply
    48,647.62x = 72,942.18 × 19,030.18
  4. Step 4: Simplify right side
    48,647.62x = 1,388,102,814.99
  5. Step 5: Solve for x
    x = 1,388,102,814.99/48,647.62
  6. Step 6: Final answer
    x = 28,533.83

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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.