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Finding the Fourth Proportional to 58,075.84, 87,105.56 and 18,627.82

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Solution

The fourth proportional to 58,075.84, 87,105.56 and 18,627.82 is: 27,939.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,075.84 : 87,105.56 = 18,627.82 : x
  2. Step 2: Convert to fraction form
    58,075.84/87,105.56 = 18,627.82/x
  3. Step 3: Cross multiply
    58,075.84x = 87,105.56 × 18,627.82
  4. Step 4: Simplify right side
    58,075.84x = 1,622,586,692.68
  5. Step 5: Solve for x
    x = 1,622,586,692.68/58,075.84
  6. Step 6: Final answer
    x = 27,939.10

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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.