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Finding the Fourth Proportional to 3,422.63, 4,720.88 and 2,097

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Solution

The fourth proportional to 3,422.63, 4,720.88 and 2,097 is: 2,892.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.63 : 4,720.88 = 2,097 : x
  2. Step 2: Convert to fraction form
    3,422.63/4,720.88 = 2,097/x
  3. Step 3: Cross multiply
    3,422.63x = 4,720.88 × 2,097
  4. Step 4: Simplify right side
    3,422.63x = 9,899,690.60
  5. Step 5: Solve for x
    x = 9,899,690.60/3,422.63
  6. Step 6: Final answer
    x = 2,892.42

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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.