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Finding the Fourth Proportional to 8,759,200.56, 11,999,905.38 and 8,431,709.61

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Solution

The fourth proportional to 8,759,200.56, 11,999,905.38 and 8,431,709.61 is: 11,551,250.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,759,200.56 : 11,999,905.38 = 8,431,709.61 : x
  2. Step 2: Convert to fraction form
    8,759,200.56/11,999,905.38 = 8,431,709.61/x
  3. Step 3: Cross multiply
    8,759,200.56x = 11,999,905.38 × 8,431,709.61
  4. Step 4: Simplify right side
    8,759,200.56x = 101,179,717,511,636.70
  5. Step 5: Solve for x
    x = 101,179,717,511,636.70/8,759,200.56
  6. Step 6: Final answer
    x = 11,551,250.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.