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Finding the Fourth Proportional to 5,991,406.80, 8,987,110.20 and 1,947,886.80

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Solution

The fourth proportional to 5,991,406.80, 8,987,110.20 and 1,947,886.80 is: 2,921,830.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,991,406.80 : 8,987,110.20 = 1,947,886.80 : x
  2. Step 2: Convert to fraction form
    5,991,406.80/8,987,110.20 = 1,947,886.80/x
  3. Step 3: Cross multiply
    5,991,406.80x = 8,987,110.20 × 1,947,886.80
  4. Step 4: Simplify right side
    5,991,406.80x = 17,505,873,328,725.36
  5. Step 5: Solve for x
    x = 17,505,873,328,725.36/5,991,406.80
  6. Step 6: Final answer
    x = 2,921,830.20

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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.