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Finding the Fourth Proportional to 60,622.47, 90,766.04 and 30,976.47

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Solution

The fourth proportional to 60,622.47, 90,766.04 and 30,976.47 is: 46,379.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,622.47 : 90,766.04 = 30,976.47 : x
  2. Step 2: Convert to fraction form
    60,622.47/90,766.04 = 30,976.47/x
  3. Step 3: Cross multiply
    60,622.47x = 90,766.04 × 30,976.47
  4. Step 4: Simplify right side
    60,622.47x = 2,811,611,360.20
  5. Step 5: Solve for x
    x = 2,811,611,360.20/60,622.47
  6. Step 6: Final answer
    x = 46,379.03

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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.