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Finding the Fourth Proportional to 4,908.98, 6,774.42 and 2,919.15

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Solution

The fourth proportional to 4,908.98, 6,774.42 and 2,919.15 is: 4,028.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,908.98 : 6,774.42 = 2,919.15 : x
  2. Step 2: Convert to fraction form
    4,908.98/6,774.42 = 2,919.15/x
  3. Step 3: Cross multiply
    4,908.98x = 6,774.42 × 2,919.15
  4. Step 4: Simplify right side
    4,908.98x = 19,775,548.14
  5. Step 5: Solve for x
    x = 19,775,548.14/4,908.98
  6. Step 6: Final answer
    x = 4,028.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.