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Finding the Fourth Proportional to 13,369,676.80, 20,053,348.80 and 4,394,228.80

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Solution

The fourth proportional to 13,369,676.80, 20,053,348.80 and 4,394,228.80 is: 6,590,959.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,369,676.80 : 20,053,348.80 = 4,394,228.80 : x
  2. Step 2: Convert to fraction form
    13,369,676.80/20,053,348.80 = 4,394,228.80/x
  3. Step 3: Cross multiply
    13,369,676.80x = 20,053,348.80 × 4,394,228.80
  4. Step 4: Simplify right side
    13,369,676.80x = 88,119,002,833,405.44
  5. Step 5: Solve for x
    x = 88,119,002,833,405.44/13,369,676.80
  6. Step 6: Final answer
    x = 6,590,959.84

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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.