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Finding the Fourth Proportional to 61,408.82, 84,754.40 and 35,563.64

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Solution

The fourth proportional to 61,408.82, 84,754.40 and 35,563.64 is: 49,083.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,408.82 : 84,754.40 = 35,563.64 : x
  2. Step 2: Convert to fraction form
    61,408.82/84,754.40 = 35,563.64/x
  3. Step 3: Cross multiply
    61,408.82x = 84,754.40 × 35,563.64
  4. Step 4: Simplify right side
    61,408.82x = 3,014,174,368.43
  5. Step 5: Solve for x
    x = 3,014,174,368.43/61,408.82
  6. Step 6: Final answer
    x = 49,083.74

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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.