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Finding the Fourth Proportional to 18,072.84, 27,110.88 and 4,925.28

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Solution

The fourth proportional to 18,072.84, 27,110.88 and 4,925.28 is: 7,388.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,072.84 : 27,110.88 = 4,925.28 : x
  2. Step 2: Convert to fraction form
    18,072.84/27,110.88 = 4,925.28/x
  3. Step 3: Cross multiply
    18,072.84x = 27,110.88 × 4,925.28
  4. Step 4: Simplify right side
    18,072.84x = 133,528,675.05
  5. Step 5: Solve for x
    x = 133,528,675.05/18,072.84
  6. Step 6: Final answer
    x = 7,388.36

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.