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Finding the Fourth Proportional to 3,020.97, 4,532.13 and 940.95

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Solution

The fourth proportional to 3,020.97, 4,532.13 and 940.95 is: 1,411.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.97 : 4,532.13 = 940.95 : x
  2. Step 2: Convert to fraction form
    3,020.97/4,532.13 = 940.95/x
  3. Step 3: Cross multiply
    3,020.97x = 4,532.13 × 940.95
  4. Step 4: Simplify right side
    3,020.97x = 4,264,507.72
  5. Step 5: Solve for x
    x = 4,264,507.72/3,020.97
  6. Step 6: Final answer
    x = 1,411.64

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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.