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Finding the Fourth Proportional to 5,455.06, 8,184 and 1,559.76

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Solution

The fourth proportional to 5,455.06, 8,184 and 1,559.76 is: 2,340.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.06 : 8,184 = 1,559.76 : x
  2. Step 2: Convert to fraction form
    5,455.06/8,184 = 1,559.76/x
  3. Step 3: Cross multiply
    5,455.06x = 8,184 × 1,559.76
  4. Step 4: Simplify right side
    5,455.06x = 12,765,075.84
  5. Step 5: Solve for x
    x = 12,765,075.84/5,455.06
  6. Step 6: Final answer
    x = 2,340.04

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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.