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Finding the Fourth Proportional to 14,005.90, 19,333.09 and 12,511.22

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Solution

The fourth proportional to 14,005.90, 19,333.09 and 12,511.22 is: 17,269.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,005.90 : 19,333.09 = 12,511.22 : x
  2. Step 2: Convert to fraction form
    14,005.90/19,333.09 = 12,511.22/x
  3. Step 3: Cross multiply
    14,005.90x = 19,333.09 × 12,511.22
  4. Step 4: Simplify right side
    14,005.90x = 241,880,445.60
  5. Step 5: Solve for x
    x = 241,880,445.60/14,005.90
  6. Step 6: Final answer
    x = 17,269.90

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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.