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Finding the Fourth Proportional to 28,187.73, 38,810.55 and 23,929.97

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Solution

The fourth proportional to 28,187.73, 38,810.55 and 23,929.97 is: 32,948.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,187.73 : 38,810.55 = 23,929.97 : x
  2. Step 2: Convert to fraction form
    28,187.73/38,810.55 = 23,929.97/x
  3. Step 3: Cross multiply
    28,187.73x = 38,810.55 × 23,929.97
  4. Step 4: Simplify right side
    28,187.73x = 928,735,297.18
  5. Step 5: Solve for x
    x = 928,735,297.18/28,187.73
  6. Step 6: Final answer
    x = 32,948.21

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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.