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Finding the Fourth Proportional to 7,876,390.48, 11,814,584.36 and 1,892,758.48

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Solution

The fourth proportional to 7,876,390.48, 11,814,584.36 and 1,892,758.48 is: 2,839,137.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,876,390.48 : 11,814,584.36 = 1,892,758.48 : x
  2. Step 2: Convert to fraction form
    7,876,390.48/11,814,584.36 = 1,892,758.48/x
  3. Step 3: Cross multiply
    7,876,390.48x = 11,814,584.36 × 1,892,758.48
  4. Step 4: Simplify right side
    7,876,390.48x = 22,362,154,735,065.37
  5. Step 5: Solve for x
    x = 22,362,154,735,065.37/7,876,390.48
  6. Step 6: Final answer
    x = 2,839,137.39

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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.