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Finding the Fourth Proportional to 2,248.32, 3,368.82 and 1,939.41

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Solution

The fourth proportional to 2,248.32, 3,368.82 and 1,939.41 is: 2,905.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,248.32 : 3,368.82 = 1,939.41 : x
  2. Step 2: Convert to fraction form
    2,248.32/3,368.82 = 1,939.41/x
  3. Step 3: Cross multiply
    2,248.32x = 3,368.82 × 1,939.41
  4. Step 4: Simplify right side
    2,248.32x = 6,533,523.20
  5. Step 5: Solve for x
    x = 6,533,523.20/2,248.32
  6. Step 6: Final answer
    x = 2,905.96

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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.