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Finding the Fourth Proportional to 18,671.04, 28,016.28 and 14,698

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Solution

The fourth proportional to 18,671.04, 28,016.28 and 14,698 is: 22,054.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,671.04 : 28,016.28 = 14,698 : x
  2. Step 2: Convert to fraction form
    18,671.04/28,016.28 = 14,698/x
  3. Step 3: Cross multiply
    18,671.04x = 28,016.28 × 14,698
  4. Step 4: Simplify right side
    18,671.04x = 411,783,283.44
  5. Step 5: Solve for x
    x = 411,783,283.44/18,671.04
  6. Step 6: Final answer
    x = 22,054.65

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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.