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Finding the Fourth Proportional to 14,699.72, 20,278.90 and 10,234.44

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Solution

The fourth proportional to 14,699.72, 20,278.90 and 10,234.44 is: 14,118.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,699.72 : 20,278.90 = 10,234.44 : x
  2. Step 2: Convert to fraction form
    14,699.72/20,278.90 = 10,234.44/x
  3. Step 3: Cross multiply
    14,699.72x = 20,278.90 × 10,234.44
  4. Step 4: Simplify right side
    14,699.72x = 207,543,185.32
  5. Step 5: Solve for x
    x = 207,543,185.32/14,699.72
  6. Step 6: Final answer
    x = 14,118.85

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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.