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Finding the Fourth Proportional to 1,773.79, 2,447.17 and 1,771.06

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Solution

The fourth proportional to 1,773.79, 2,447.17 and 1,771.06 is: 2,443.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,773.79 : 2,447.17 = 1,771.06 : x
  2. Step 2: Convert to fraction form
    1,773.79/2,447.17 = 1,771.06/x
  3. Step 3: Cross multiply
    1,773.79x = 2,447.17 × 1,771.06
  4. Step 4: Simplify right side
    1,773.79x = 4,334,084.90
  5. Step 5: Solve for x
    x = 4,334,084.90/1,773.79
  6. Step 6: Final answer
    x = 2,443.40

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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.