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Finding the Fourth Proportional to 29,018.54, 43,527.82 and 7,958.80

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Solution

The fourth proportional to 29,018.54, 43,527.82 and 7,958.80 is: 11,938.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,018.54 : 43,527.82 = 7,958.80 : x
  2. Step 2: Convert to fraction form
    29,018.54/43,527.82 = 7,958.80/x
  3. Step 3: Cross multiply
    29,018.54x = 43,527.82 × 7,958.80
  4. Step 4: Simplify right side
    29,018.54x = 346,429,213.82
  5. Step 5: Solve for x
    x = 346,429,213.82/29,018.54
  6. Step 6: Final answer
    x = 11,938.20

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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.