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Finding the Fourth Proportional to 4,792.88, 7,189.44 and 1,505.90

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Solution

The fourth proportional to 4,792.88, 7,189.44 and 1,505.90 is: 2,258.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,792.88 : 7,189.44 = 1,505.90 : x
  2. Step 2: Convert to fraction form
    4,792.88/7,189.44 = 1,505.90/x
  3. Step 3: Cross multiply
    4,792.88x = 7,189.44 × 1,505.90
  4. Step 4: Simplify right side
    4,792.88x = 10,826,577.70
  5. Step 5: Solve for x
    x = 10,826,577.70/4,792.88
  6. Step 6: Final answer
    x = 2,258.89

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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.