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Finding the Fourth Proportional to 28,497.48, 39,326.44 and 15,922.24

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Solution

The fourth proportional to 28,497.48, 39,326.44 and 15,922.24 is: 21,972.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,497.48 : 39,326.44 = 15,922.24 : x
  2. Step 2: Convert to fraction form
    28,497.48/39,326.44 = 15,922.24/x
  3. Step 3: Cross multiply
    28,497.48x = 39,326.44 × 15,922.24
  4. Step 4: Simplify right side
    28,497.48x = 626,165,016.03
  5. Step 5: Solve for x
    x = 626,165,016.03/28,497.48
  6. Step 6: Final answer
    x = 21,972.65

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