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Finding the Fourth Proportional to 3,393, 5,075.43 and 3,185.64

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Solution

The fourth proportional to 3,393, 5,075.43 and 3,185.64 is: 4,765.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393 : 5,075.43 = 3,185.64 : x
  2. Step 2: Convert to fraction form
    3,393/5,075.43 = 3,185.64/x
  3. Step 3: Cross multiply
    3,393x = 5,075.43 × 3,185.64
  4. Step 4: Simplify right side
    3,393x = 16,168,492.83
  5. Step 5: Solve for x
    x = 16,168,492.83/3,393
  6. Step 6: Final answer
    x = 4,765.25

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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.