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Finding the Fourth Proportional to 8,792,485.70, 13,188,728.55 and 8,008,664.90

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Solution

The fourth proportional to 8,792,485.70, 13,188,728.55 and 8,008,664.90 is: 12,012,997.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,792,485.70 : 13,188,728.55 = 8,008,664.90 : x
  2. Step 2: Convert to fraction form
    8,792,485.70/13,188,728.55 = 8,008,664.90/x
  3. Step 3: Cross multiply
    8,792,485.70x = 13,188,728.55 × 8,008,664.90
  4. Step 4: Simplify right side
    8,792,485.70x = 105,624,107,414,012.91
  5. Step 5: Solve for x
    x = 105,624,107,414,012.91/8,792,485.70
  6. Step 6: Final answer
    x = 12,012,997.35

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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.