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Finding the Fourth Proportional to 61,987.56, 85,542.12 and 33,692.64

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Solution

The fourth proportional to 61,987.56, 85,542.12 and 33,692.64 is: 46,495.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,987.56 : 85,542.12 = 33,692.64 : x
  2. Step 2: Convert to fraction form
    61,987.56/85,542.12 = 33,692.64/x
  3. Step 3: Cross multiply
    61,987.56x = 85,542.12 × 33,692.64
  4. Step 4: Simplify right side
    61,987.56x = 2,882,139,854.00
  5. Step 5: Solve for x
    x = 2,882,139,854.00/61,987.56
  6. Step 6: Final answer
    x = 46,495.46

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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.