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Finding the Fourth Proportional to 13,267,728.04, 19,900,843.48 and 5,879,647.78

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Solution

The fourth proportional to 13,267,728.04, 19,900,843.48 and 5,879,647.78 is: 8,819,139.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,267,728.04 : 19,900,843.48 = 5,879,647.78 : x
  2. Step 2: Convert to fraction form
    13,267,728.04/19,900,843.48 = 5,879,647.78/x
  3. Step 3: Cross multiply
    13,267,728.04x = 19,900,843.48 × 5,879,647.78
  4. Step 4: Simplify right side
    13,267,728.04x = 117,009,950,187,309.48
  5. Step 5: Solve for x
    x = 117,009,950,187,309.48/13,267,728.04
  6. Step 6: Final answer
    x = 8,819,139.93

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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.