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Finding the Fourth Proportional to 61,408.36, 84,743.89 and 34,551.33

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Solution

The fourth proportional to 61,408.36, 84,743.89 and 34,551.33 is: 47,681.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,408.36 : 84,743.89 = 34,551.33 : x
  2. Step 2: Convert to fraction form
    61,408.36/84,743.89 = 34,551.33/x
  3. Step 3: Cross multiply
    61,408.36x = 84,743.89 × 34,551.33
  4. Step 4: Simplify right side
    61,408.36x = 2,928,013,704.71
  5. Step 5: Solve for x
    x = 2,928,013,704.71/61,408.36
  6. Step 6: Final answer
    x = 47,681.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.