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Finding the Fourth Proportional to 3,294.48, 4,943.16 and 1,242

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Solution

The fourth proportional to 3,294.48, 4,943.16 and 1,242 is: 1,863.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,294.48 : 4,943.16 = 1,242 : x
  2. Step 2: Convert to fraction form
    3,294.48/4,943.16 = 1,242/x
  3. Step 3: Cross multiply
    3,294.48x = 4,943.16 × 1,242
  4. Step 4: Simplify right side
    3,294.48x = 6,139,404.72
  5. Step 5: Solve for x
    x = 6,139,404.72/3,294.48
  6. Step 6: Final answer
    x = 1,863.54

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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.