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Finding the Fourth Proportional to 15,068.49, 20,795.74 and 8,356.22

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Solution

The fourth proportional to 15,068.49, 20,795.74 and 8,356.22 is: 11,532.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,068.49 : 20,795.74 = 8,356.22 : x
  2. Step 2: Convert to fraction form
    15,068.49/20,795.74 = 8,356.22/x
  3. Step 3: Cross multiply
    15,068.49x = 20,795.74 × 8,356.22
  4. Step 4: Simplify right side
    15,068.49x = 173,773,778.50
  5. Step 5: Solve for x
    x = 173,773,778.50/15,068.49
  6. Step 6: Final answer
    x = 11,532.26

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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.