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Finding the Fourth Proportional to 14,978,231.70, 22,467,347.55 and 7,419,959.70

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Solution

The fourth proportional to 14,978,231.70, 22,467,347.55 and 7,419,959.70 is: 11,129,939.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,978,231.70 : 22,467,347.55 = 7,419,959.70 : x
  2. Step 2: Convert to fraction form
    14,978,231.70/22,467,347.55 = 7,419,959.70/x
  3. Step 3: Cross multiply
    14,978,231.70x = 22,467,347.55 × 7,419,959.70
  4. Step 4: Simplify right side
    14,978,231.70x = 166,706,813,386,893.75
  5. Step 5: Solve for x
    x = 166,706,813,386,893.75/14,978,231.70
  6. Step 6: Final answer
    x = 11,129,939.55

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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.