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Finding the Fourth Proportional to 14,372.80, 19,833.06 and 8,085.04

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Solution

The fourth proportional to 14,372.80, 19,833.06 and 8,085.04 is: 11,156.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,372.80 : 19,833.06 = 8,085.04 : x
  2. Step 2: Convert to fraction form
    14,372.80/19,833.06 = 8,085.04/x
  3. Step 3: Cross multiply
    14,372.80x = 19,833.06 × 8,085.04
  4. Step 4: Simplify right side
    14,372.80x = 160,351,083.42
  5. Step 5: Solve for x
    x = 160,351,083.42/14,372.80
  6. Step 6: Final answer
    x = 11,156.57

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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.