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Finding the Fourth Proportional to 2,354.96, 3,249.96 and 1,307

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Solution

The fourth proportional to 2,354.96, 3,249.96 and 1,307 is: 1,803.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,354.96 : 3,249.96 = 1,307 : x
  2. Step 2: Convert to fraction form
    2,354.96/3,249.96 = 1,307/x
  3. Step 3: Cross multiply
    2,354.96x = 3,249.96 × 1,307
  4. Step 4: Simplify right side
    2,354.96x = 4,247,697.72
  5. Step 5: Solve for x
    x = 4,247,697.72/2,354.96
  6. Step 6: Final answer
    x = 1,803.72

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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.