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Finding the Fourth Proportional to 3,406.73, 4,701.51 and 1,914.71

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Solution

The fourth proportional to 3,406.73, 4,701.51 and 1,914.71 is: 2,642.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,406.73 : 4,701.51 = 1,914.71 : x
  2. Step 2: Convert to fraction form
    3,406.73/4,701.51 = 1,914.71/x
  3. Step 3: Cross multiply
    3,406.73x = 4,701.51 × 1,914.71
  4. Step 4: Simplify right side
    3,406.73x = 9,002,004.70
  5. Step 5: Solve for x
    x = 9,002,004.70/3,406.73
  6. Step 6: Final answer
    x = 2,642.42

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1.5x scale

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.