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Finding the Fourth Proportional to 14,015.73, 19,343.85 and 7,967.73

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Solution

The fourth proportional to 14,015.73, 19,343.85 and 7,967.73 is: 10,996.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,015.73 : 19,343.85 = 7,967.73 : x
  2. Step 2: Convert to fraction form
    14,015.73/19,343.85 = 7,967.73/x
  3. Step 3: Cross multiply
    14,015.73x = 19,343.85 × 7,967.73
  4. Step 4: Simplify right side
    14,015.73x = 154,126,573.96
  5. Step 5: Solve for x
    x = 154,126,573.96/14,015.73
  6. Step 6: Final answer
    x = 10,996.69

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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.