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Finding the Fourth Proportional to 7,704,920.80, 11,535,262.80 and 7,483,736.80

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Solution

The fourth proportional to 7,704,920.80, 11,535,262.80 and 7,483,736.80 is: 11,204,121.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,704,920.80 : 11,535,262.80 = 7,483,736.80 : x
  2. Step 2: Convert to fraction form
    7,704,920.80/11,535,262.80 = 7,483,736.80/x
  3. Step 3: Cross multiply
    7,704,920.80x = 11,535,262.80 × 7,483,736.80
  4. Step 4: Simplify right side
    7,704,920.80x = 86,326,870,714,031.05
  5. Step 5: Solve for x
    x = 86,326,870,714,031.05/7,704,920.80
  6. Step 6: Final answer
    x = 11,204,121.75

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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.