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Finding the Fourth Proportional to 5,075.04, 7,611.48 and 1,611.48

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Solution

The fourth proportional to 5,075.04, 7,611.48 and 1,611.48 is: 2,416.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,075.04 : 7,611.48 = 1,611.48 : x
  2. Step 2: Convert to fraction form
    5,075.04/7,611.48 = 1,611.48/x
  3. Step 3: Cross multiply
    5,075.04x = 7,611.48 × 1,611.48
  4. Step 4: Simplify right side
    5,075.04x = 12,265,747.79
  5. Step 5: Solve for x
    x = 12,265,747.79/5,075.04
  6. Step 6: Final answer
    x = 2,416.88

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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.