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Finding the Fourth Proportional to 18,807,745.29, 25,957,525.49 and 11,469,835.06

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Solution

The fourth proportional to 18,807,745.29, 25,957,525.49 and 11,469,835.06 is: 15,830,102.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,807,745.29 : 25,957,525.49 = 11,469,835.06 : x
  2. Step 2: Convert to fraction form
    18,807,745.29/25,957,525.49 = 11,469,835.06/x
  3. Step 3: Cross multiply
    18,807,745.29x = 25,957,525.49 × 11,469,835.06
  4. Step 4: Simplify right side
    18,807,745.29x = 297,728,535,921,332.38
  5. Step 5: Solve for x
    x = 297,728,535,921,332.38/18,807,745.29
  6. Step 6: Final answer
    x = 15,830,102.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.