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Finding the Fourth Proportional to 3,020.85, 4,531.68 and 941.00

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Solution

The fourth proportional to 3,020.85, 4,531.68 and 941.00 is: 1,411.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.85 : 4,531.68 = 941.00 : x
  2. Step 2: Convert to fraction form
    3,020.85/4,531.68 = 941.00/x
  3. Step 3: Cross multiply
    3,020.85x = 4,531.68 × 941.00
  4. Step 4: Simplify right side
    3,020.85x = 4,264,288.22
  5. Step 5: Solve for x
    x = 4,264,288.22/3,020.85
  6. Step 6: Final answer
    x = 1,411.62

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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.