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Finding the Fourth Proportional to 60,699.93, 91,059.26 and 20,709.54

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Solution

The fourth proportional to 60,699.93, 91,059.26 and 20,709.54 is: 31,067.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,699.93 : 91,059.26 = 20,709.54 : x
  2. Step 2: Convert to fraction form
    60,699.93/91,059.26 = 20,709.54/x
  3. Step 3: Cross multiply
    60,699.93x = 91,059.26 × 20,709.54
  4. Step 4: Simplify right side
    60,699.93x = 1,885,794,932.04
  5. Step 5: Solve for x
    x = 1,885,794,932.04/60,699.93
  6. Step 6: Final answer
    x = 31,067.50

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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.