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Finding the Fourth Proportional to 14,978,834.22, 20,670,588.88 and 8,363,524.94

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Solution

The fourth proportional to 14,978,834.22, 20,670,588.88 and 8,363,524.94 is: 11,541,551.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,978,834.22 : 20,670,588.88 = 8,363,524.94 : x
  2. Step 2: Convert to fraction form
    14,978,834.22/20,670,588.88 = 8,363,524.94/x
  3. Step 3: Cross multiply
    14,978,834.22x = 20,670,588.88 × 8,363,524.94
  4. Step 4: Simplify right side
    14,978,834.22x = 172,878,985,498,104.91
  5. Step 5: Solve for x
    x = 172,878,985,498,104.91/14,978,834.22
  6. Step 6: Final answer
    x = 11,541,551.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.