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Finding the Fourth Proportional to 61,164.82, 91,786.20 and 27,888.20

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Solution

The fourth proportional to 61,164.82, 91,786.20 and 27,888.20 is: 41,850.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,164.82 : 91,786.20 = 27,888.20 : x
  2. Step 2: Convert to fraction form
    61,164.82/91,786.20 = 27,888.20/x
  3. Step 3: Cross multiply
    61,164.82x = 91,786.20 × 27,888.20
  4. Step 4: Simplify right side
    61,164.82x = 2,559,751,902.84
  5. Step 5: Solve for x
    x = 2,559,751,902.84/61,164.82
  6. Step 6: Final answer
    x = 41,850.07

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1.5x scale

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.