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Finding the Fourth Proportional to 61,247.06, 91,870.60 and 19,694.06

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Solution

The fourth proportional to 61,247.06, 91,870.60 and 19,694.06 is: 29,541.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,247.06 : 91,870.60 = 19,694.06 : x
  2. Step 2: Convert to fraction form
    61,247.06/91,870.60 = 19,694.06/x
  3. Step 3: Cross multiply
    61,247.06x = 91,870.60 × 19,694.06
  4. Step 4: Simplify right side
    61,247.06x = 1,809,305,289.08
  5. Step 5: Solve for x
    x = 1,809,305,289.08/61,247.06
  6. Step 6: Final answer
    x = 29,541.09

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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.