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Finding the Fourth Proportional to 8,936,998.80, 13,378,926.15 and 8,936,998.80

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Solution

The fourth proportional to 8,936,998.80, 13,378,926.15 and 8,936,998.80 is: 13,378,926.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936,998.80 : 13,378,926.15 = 8,936,998.80 : x
  2. Step 2: Convert to fraction form
    8,936,998.80/13,378,926.15 = 8,936,998.80/x
  3. Step 3: Cross multiply
    8,936,998.80x = 13,378,926.15 × 8,936,998.80
  4. Step 4: Simplify right side
    8,936,998.80x = 119,567,446,947,838.64
  5. Step 5: Solve for x
    x = 119,567,446,947,838.64/8,936,998.80
  6. Step 6: Final answer
    x = 13,378,926.15

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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.