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Finding the Fourth Proportional to 33,220,011.80, 49,830,017.70 and 18,103,467.80

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Solution

The fourth proportional to 33,220,011.80, 49,830,017.70 and 18,103,467.80 is: 27,155,201.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,220,011.80 : 49,830,017.70 = 18,103,467.80 : x
  2. Step 2: Convert to fraction form
    33,220,011.80/49,830,017.70 = 18,103,467.80/x
  3. Step 3: Cross multiply
    33,220,011.80x = 49,830,017.70 × 18,103,467.80
  4. Step 4: Simplify right side
    33,220,011.80x = 902,096,120,905,380.12
  5. Step 5: Solve for x
    x = 902,096,120,905,380.12/33,220,011.80
  6. Step 6: Final answer
    x = 27,155,201.70

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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.