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Finding the Fourth Proportional to 21,511.96, 32,266.65 and 13,193.26

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Solution

The fourth proportional to 21,511.96, 32,266.65 and 13,193.26 is: 19,789.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,511.96 : 32,266.65 = 13,193.26 : x
  2. Step 2: Convert to fraction form
    21,511.96/32,266.65 = 13,193.26/x
  3. Step 3: Cross multiply
    21,511.96x = 32,266.65 × 13,193.26
  4. Step 4: Simplify right side
    21,511.96x = 425,702,302.78
  5. Step 5: Solve for x
    x = 425,702,302.78/21,511.96
  6. Step 6: Final answer
    x = 19,789.10

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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.