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Finding the Fourth Proportional to 55,087.76, 82,999.24 and 49,828.88

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Solution

The fourth proportional to 55,087.76, 82,999.24 and 49,828.88 is: 75,075.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,087.76 : 82,999.24 = 49,828.88 : x
  2. Step 2: Convert to fraction form
    55,087.76/82,999.24 = 49,828.88/x
  3. Step 3: Cross multiply
    55,087.76x = 82,999.24 × 49,828.88
  4. Step 4: Simplify right side
    55,087.76x = 4,135,759,170.05
  5. Step 5: Solve for x
    x = 4,135,759,170.05/55,087.76
  6. Step 6: Final answer
    x = 75,075.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.