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Finding the Fourth Proportional to 58,991.72, 81,407.94 and 33,845.16

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Solution

The fourth proportional to 58,991.72, 81,407.94 and 33,845.16 is: 46,705.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,991.72 : 81,407.94 = 33,845.16 : x
  2. Step 2: Convert to fraction form
    58,991.72/81,407.94 = 33,845.16/x
  3. Step 3: Cross multiply
    58,991.72x = 81,407.94 × 33,845.16
  4. Step 4: Simplify right side
    58,991.72x = 2,755,264,754.57
  5. Step 5: Solve for x
    x = 2,755,264,754.57/58,991.72
  6. Step 6: Final answer
    x = 46,705.96

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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.