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Finding the Fourth Proportional to 19,850.64, 29,775.60 and 16,750.56

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Solution

The fourth proportional to 19,850.64, 29,775.60 and 16,750.56 is: 25,125.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,850.64 : 29,775.60 = 16,750.56 : x
  2. Step 2: Convert to fraction form
    19,850.64/29,775.60 = 16,750.56/x
  3. Step 3: Cross multiply
    19,850.64x = 29,775.60 × 16,750.56
  4. Step 4: Simplify right side
    19,850.64x = 498,757,974.34
  5. Step 5: Solve for x
    x = 498,757,974.34/19,850.64
  6. Step 6: Final answer
    x = 25,125.54

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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.