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Finding the Fourth Proportional to 14,251.17, 21,379.05 and 4,390.44

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Solution

The fourth proportional to 14,251.17, 21,379.05 and 4,390.44 is: 6,586.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,251.17 : 21,379.05 = 4,390.44 : x
  2. Step 2: Convert to fraction form
    14,251.17/21,379.05 = 4,390.44/x
  3. Step 3: Cross multiply
    14,251.17x = 21,379.05 × 4,390.44
  4. Step 4: Simplify right side
    14,251.17x = 93,863,436.28
  5. Step 5: Solve for x
    x = 93,863,436.28/14,251.17
  6. Step 6: Final answer
    x = 6,586.37

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1.5x scale

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.