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Finding the Fourth Proportional to 3,608.88, 5,410.08 and 2,047.20

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Solution

The fourth proportional to 3,608.88, 5,410.08 and 2,047.20 is: 3,068.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.88 : 5,410.08 = 2,047.20 : x
  2. Step 2: Convert to fraction form
    3,608.88/5,410.08 = 2,047.20/x
  3. Step 3: Cross multiply
    3,608.88x = 5,410.08 × 2,047.20
  4. Step 4: Simplify right side
    3,608.88x = 11,075,515.78
  5. Step 5: Solve for x
    x = 11,075,515.78/3,608.88
  6. Step 6: Final answer
    x = 3,068.96

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1.5x scale

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.