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Finding the Fourth Proportional to 3,508.71, 4,842.09 and 1,936.95

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Solution

The fourth proportional to 3,508.71, 4,842.09 and 1,936.95 is: 2,673.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,508.71 : 4,842.09 = 1,936.95 : x
  2. Step 2: Convert to fraction form
    3,508.71/4,842.09 = 1,936.95/x
  3. Step 3: Cross multiply
    3,508.71x = 4,842.09 × 1,936.95
  4. Step 4: Simplify right side
    3,508.71x = 9,378,886.23
  5. Step 5: Solve for x
    x = 9,378,886.23/3,508.71
  6. Step 6: Final answer
    x = 2,673.03

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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.