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Finding the Fourth Proportional to 5,363.60, 8,040.60 and 2,075.60

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Solution

The fourth proportional to 5,363.60, 8,040.60 and 2,075.60 is: 3,111.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,363.60 : 8,040.60 = 2,075.60 : x
  2. Step 2: Convert to fraction form
    5,363.60/8,040.60 = 2,075.60/x
  3. Step 3: Cross multiply
    5,363.60x = 8,040.60 × 2,075.60
  4. Step 4: Simplify right side
    5,363.60x = 16,689,069.36
  5. Step 5: Solve for x
    x = 16,689,069.36/5,363.60
  6. Step 6: Final answer
    x = 3,111.54

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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.