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Finding the Fourth Proportional to 4,907.88, 7,361.88 and 2,720.88

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Solution

The fourth proportional to 4,907.88, 7,361.88 and 2,720.88 is: 4,081.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,907.88 : 7,361.88 = 2,720.88 : x
  2. Step 2: Convert to fraction form
    4,907.88/7,361.88 = 2,720.88/x
  3. Step 3: Cross multiply
    4,907.88x = 7,361.88 × 2,720.88
  4. Step 4: Simplify right side
    4,907.88x = 20,030,792.05
  5. Step 5: Solve for x
    x = 20,030,792.05/4,907.88
  6. Step 6: Final answer
    x = 4,081.35

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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.