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Finding the Fourth Proportional to 28,033.89, 38,646.57 and 22,055.17

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Solution

The fourth proportional to 28,033.89, 38,646.57 and 22,055.17 is: 30,404.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,033.89 : 38,646.57 = 22,055.17 : x
  2. Step 2: Convert to fraction form
    28,033.89/38,646.57 = 22,055.17/x
  3. Step 3: Cross multiply
    28,033.89x = 38,646.57 × 22,055.17
  4. Step 4: Simplify right side
    28,033.89x = 852,356,671.27
  5. Step 5: Solve for x
    x = 852,356,671.27/28,033.89
  6. Step 6: Final answer
    x = 30,404.51

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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.