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Finding the Fourth Proportional to 61,920.56, 85,447.72 and 33,625.68

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Solution

The fourth proportional to 61,920.56, 85,447.72 and 33,625.68 is: 46,402.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,920.56 : 85,447.72 = 33,625.68 : x
  2. Step 2: Convert to fraction form
    61,920.56/85,447.72 = 33,625.68/x
  3. Step 3: Cross multiply
    61,920.56x = 85,447.72 × 33,625.68
  4. Step 4: Simplify right side
    61,920.56x = 2,873,237,689.45
  5. Step 5: Solve for x
    x = 2,873,237,689.45/61,920.56
  6. Step 6: Final answer
    x = 46,402.00

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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.