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Finding the Fourth Proportional to 82,958.99, 124,525.96 and 38,628.50

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Solution

The fourth proportional to 82,958.99, 124,525.96 and 38,628.50 is: 57,983.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,958.99 : 124,525.96 = 38,628.50 : x
  2. Step 2: Convert to fraction form
    82,958.99/124,525.96 = 38,628.50/x
  3. Step 3: Cross multiply
    82,958.99x = 124,525.96 × 38,628.50
  4. Step 4: Simplify right side
    82,958.99x = 4,810,250,326.66
  5. Step 5: Solve for x
    x = 4,810,250,326.66/82,958.99
  6. Step 6: Final answer
    x = 57,983.48

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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.