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Finding the Fourth Proportional to 8,338,072.80, 12,488,446.80 and 6,845,080.80

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Solution

The fourth proportional to 8,338,072.80, 12,488,446.80 and 6,845,080.80 is: 10,252,300.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,338,072.80 : 12,488,446.80 = 6,845,080.80 : x
  2. Step 2: Convert to fraction form
    8,338,072.80/12,488,446.80 = 6,845,080.80/x
  3. Step 3: Cross multiply
    8,338,072.80x = 12,488,446.80 × 6,845,080.80
  4. Step 4: Simplify right side
    8,338,072.80x = 85,484,427,412,501.44
  5. Step 5: Solve for x
    x = 85,484,427,412,501.44/8,338,072.80
  6. Step 6: Final answer
    x = 10,252,300.44

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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.