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Finding the Fourth Proportional to 58,073.84, 87,102.56 and 18,625.82

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Solution

The fourth proportional to 58,073.84, 87,102.56 and 18,625.82 is: 27,936.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,073.84 : 87,102.56 = 18,625.82 : x
  2. Step 2: Convert to fraction form
    58,073.84/87,102.56 = 18,625.82/x
  3. Step 3: Cross multiply
    58,073.84x = 87,102.56 × 18,625.82
  4. Step 4: Simplify right side
    58,073.84x = 1,622,356,604.10
  5. Step 5: Solve for x
    x = 1,622,356,604.10/58,073.84
  6. Step 6: Final answer
    x = 27,936.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.