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Finding the Fourth Proportional to 14,914,603.20, 20,591,608.56 and 10,212,866.58

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Solution

The fourth proportional to 14,914,603.20, 20,591,608.56 and 10,212,866.58 is: 14,100,231.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,914,603.20 : 20,591,608.56 = 10,212,866.58 : x
  2. Step 2: Convert to fraction form
    14,914,603.20/20,591,608.56 = 10,212,866.58/x
  3. Step 3: Cross multiply
    14,914,603.20x = 20,591,608.56 × 10,212,866.58
  4. Step 4: Simplify right side
    14,914,603.20x = 210,299,350,890,865.91
  5. Step 5: Solve for x
    x = 210,299,350,890,865.91/14,914,603.20
  6. Step 6: Final answer
    x = 14,100,231.03

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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.