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Finding the Fourth Proportional to 58,486.82, 80,617.02 and 45,717.44

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Solution

The fourth proportional to 58,486.82, 80,617.02 and 45,717.44 is: 63,015.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,486.82 : 80,617.02 = 45,717.44 : x
  2. Step 2: Convert to fraction form
    58,486.82/80,617.02 = 45,717.44/x
  3. Step 3: Cross multiply
    58,486.82x = 80,617.02 × 45,717.44
  4. Step 4: Simplify right side
    58,486.82x = 3,685,603,774.83
  5. Step 5: Solve for x
    x = 3,685,603,774.83/58,486.82
  6. Step 6: Final answer
    x = 63,015.97

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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.