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Finding the Fourth Proportional to 58,745.76, 81,046.08 and 33,581.76

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Solution

The fourth proportional to 58,745.76, 81,046.08 and 33,581.76 is: 46,329.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,745.76 : 81,046.08 = 33,581.76 : x
  2. Step 2: Convert to fraction form
    58,745.76/81,046.08 = 33,581.76/x
  3. Step 3: Cross multiply
    58,745.76x = 81,046.08 × 33,581.76
  4. Step 4: Simplify right side
    58,745.76x = 2,721,670,007.50
  5. Step 5: Solve for x
    x = 2,721,670,007.50/58,745.76
  6. Step 6: Final answer
    x = 46,329.64

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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.