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Finding the Fourth Proportional to 4,908.88, 6,774.32 and 2,813

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Solution

The fourth proportional to 4,908.88, 6,774.32 and 2,813 is: 3,881.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,908.88 : 6,774.32 = 2,813 : x
  2. Step 2: Convert to fraction form
    4,908.88/6,774.32 = 2,813/x
  3. Step 3: Cross multiply
    4,908.88x = 6,774.32 × 2,813
  4. Step 4: Simplify right side
    4,908.88x = 19,056,162.16
  5. Step 5: Solve for x
    x = 19,056,162.16/4,908.88
  6. Step 6: Final answer
    x = 3,881.98

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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.