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Finding the Fourth Proportional to 65,395.36, 98,093.93 and 18,648.22

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Solution

The fourth proportional to 65,395.36, 98,093.93 and 18,648.22 is: 27,972.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,395.36 : 98,093.93 = 18,648.22 : x
  2. Step 2: Convert to fraction form
    65,395.36/98,093.93 = 18,648.22/x
  3. Step 3: Cross multiply
    65,395.36x = 98,093.93 × 18,648.22
  4. Step 4: Simplify right side
    65,395.36x = 1,829,277,187.30
  5. Step 5: Solve for x
    x = 1,829,277,187.30/65,395.36
  6. Step 6: Final answer
    x = 27,972.58

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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.