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Finding the Fourth Proportional to 2,429.94, 3,353.42 and 1,382

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Solution

The fourth proportional to 2,429.94, 3,353.42 and 1,382 is: 1,907.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,429.94 : 3,353.42 = 1,382 : x
  2. Step 2: Convert to fraction form
    2,429.94/3,353.42 = 1,382/x
  3. Step 3: Cross multiply
    2,429.94x = 3,353.42 × 1,382
  4. Step 4: Simplify right side
    2,429.94x = 4,634,426.44
  5. Step 5: Solve for x
    x = 4,634,426.44/2,429.94
  6. Step 6: Final answer
    x = 1,907.22

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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.