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Finding the Fourth Proportional to 70,023.45, 105,048.83 and 22,650.28

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Solution

The fourth proportional to 70,023.45, 105,048.83 and 22,650.28 is: 33,979.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,023.45 : 105,048.83 = 22,650.28 : x
  2. Step 2: Convert to fraction form
    70,023.45/105,048.83 = 22,650.28/x
  3. Step 3: Cross multiply
    70,023.45x = 105,048.83 × 22,650.28
  4. Step 4: Simplify right side
    70,023.45x = 2,379,385,413.17
  5. Step 5: Solve for x
    x = 2,379,385,413.17/70,023.45
  6. Step 6: Final answer
    x = 33,979.84

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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.