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Finding the Fourth Proportional to 21,595.34, 32,385.76 and 8,265.22

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Solution

The fourth proportional to 21,595.34, 32,385.76 and 8,265.22 is: 12,395.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,595.34 : 32,385.76 = 8,265.22 : x
  2. Step 2: Convert to fraction form
    21,595.34/32,385.76 = 8,265.22/x
  3. Step 3: Cross multiply
    21,595.34x = 32,385.76 × 8,265.22
  4. Step 4: Simplify right side
    21,595.34x = 267,675,431.27
  5. Step 5: Solve for x
    x = 267,675,431.27/21,595.34
  6. Step 6: Final answer
    x = 12,395.06

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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.