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Finding the Fourth Proportional to 13,477,626.80, 20,174,449.80 and 9,698,490.80

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Solution

The fourth proportional to 13,477,626.80, 20,174,449.80 and 9,698,490.80 is: 14,517,519.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,477,626.80 : 20,174,449.80 = 9,698,490.80 : x
  2. Step 2: Convert to fraction form
    13,477,626.80/20,174,449.80 = 9,698,490.80/x
  3. Step 3: Cross multiply
    13,477,626.80x = 20,174,449.80 × 9,698,490.80
  4. Step 4: Simplify right side
    13,477,626.80x = 195,661,715,780,361.88
  5. Step 5: Solve for x
    x = 195,661,715,780,361.88/13,477,626.80
  6. Step 6: Final answer
    x = 14,517,519.94

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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.