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Finding the Fourth Proportional to 35,353.78, 53,019.73 and 11,974.75

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Solution

The fourth proportional to 35,353.78, 53,019.73 and 11,974.75 is: 17,958.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,353.78 : 53,019.73 = 11,974.75 : x
  2. Step 2: Convert to fraction form
    35,353.78/53,019.73 = 11,974.75/x
  3. Step 3: Cross multiply
    35,353.78x = 53,019.73 × 11,974.75
  4. Step 4: Simplify right side
    35,353.78x = 634,898,011.82
  5. Step 5: Solve for x
    x = 634,898,011.82/35,353.78
  6. Step 6: Final answer
    x = 17,958.42

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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.