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Finding the Fourth Proportional to 49,754.03, 68,642.53 and 28,231.32

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Solution

The fourth proportional to 49,754.03, 68,642.53 and 28,231.32 is: 38,948.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,754.03 : 68,642.53 = 28,231.32 : x
  2. Step 2: Convert to fraction form
    49,754.03/68,642.53 = 28,231.32/x
  3. Step 3: Cross multiply
    49,754.03x = 68,642.53 × 28,231.32
  4. Step 4: Simplify right side
    49,754.03x = 1,937,868,992.69
  5. Step 5: Solve for x
    x = 1,937,868,992.69/49,754.03
  6. Step 6: Final answer
    x = 38,948.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.