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Finding the Fourth Proportional to 12,415,896.88, 18,740,471.27 and 12,415,896.88

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Solution

The fourth proportional to 12,415,896.88, 18,740,471.27 and 12,415,896.88 is: 18,740,471.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,415,896.88 : 18,740,471.27 = 12,415,896.88 : x
  2. Step 2: Convert to fraction form
    12,415,896.88/18,740,471.27 = 12,415,896.88/x
  3. Step 3: Cross multiply
    12,415,896.88x = 18,740,471.27 × 12,415,896.88
  4. Step 4: Simplify right side
    12,415,896.88x = 232,679,758,770,922.66
  5. Step 5: Solve for x
    x = 232,679,758,770,922.66/12,415,896.88
  6. Step 6: Final answer
    x = 18,740,471.27

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.