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Finding the Fourth Proportional to 16,605.51, 24,880.57 and 13,653.06

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Solution

The fourth proportional to 16,605.51, 24,880.57 and 13,653.06 is: 20,456.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,605.51 : 24,880.57 = 13,653.06 : x
  2. Step 2: Convert to fraction form
    16,605.51/24,880.57 = 13,653.06/x
  3. Step 3: Cross multiply
    16,605.51x = 24,880.57 × 13,653.06
  4. Step 4: Simplify right side
    16,605.51x = 339,695,915.04
  5. Step 5: Solve for x
    x = 339,695,915.04/16,605.51
  6. Step 6: Final answer
    x = 20,456.82

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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.