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Finding the Fourth Proportional to 3,445.88, 4,755.31 and 1,874.00

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Solution

The fourth proportional to 3,445.88, 4,755.31 and 1,874.00 is: 2,586.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,445.88 : 4,755.31 = 1,874.00 : x
  2. Step 2: Convert to fraction form
    3,445.88/4,755.31 = 1,874.00/x
  3. Step 3: Cross multiply
    3,445.88x = 4,755.31 × 1,874.00
  4. Step 4: Simplify right side
    3,445.88x = 8,911,458.14
  5. Step 5: Solve for x
    x = 8,911,458.14/3,445.88
  6. Step 6: Final answer
    x = 2,586.12

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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.