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Finding the Fourth Proportional to 39,751.99, 59,628.29 and 11,672.53

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Solution

The fourth proportional to 39,751.99, 59,628.29 and 11,672.53 is: 17,508.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,751.99 : 59,628.29 = 11,672.53 : x
  2. Step 2: Convert to fraction form
    39,751.99/59,628.29 = 11,672.53/x
  3. Step 3: Cross multiply
    39,751.99x = 59,628.29 × 11,672.53
  4. Step 4: Simplify right side
    39,751.99x = 696,012,796.44
  5. Step 5: Solve for x
    x = 696,012,796.44/39,751.99
  6. Step 6: Final answer
    x = 17,508.88

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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.