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Finding the Fourth Proportional to 60,893.78, 91,338.60 and 21,449.86

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Solution

The fourth proportional to 60,893.78, 91,338.60 and 21,449.86 is: 32,174.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,893.78 : 91,338.60 = 21,449.86 : x
  2. Step 2: Convert to fraction form
    60,893.78/91,338.60 = 21,449.86/x
  3. Step 3: Cross multiply
    60,893.78x = 91,338.60 × 21,449.86
  4. Step 4: Simplify right side
    60,893.78x = 1,959,200,034.69
  5. Step 5: Solve for x
    x = 1,959,200,034.69/60,893.78
  6. Step 6: Final answer
    x = 32,174.06

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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.