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Finding the Fourth Proportional to 15,821.99, 23,717.47 and 8,805.36

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Solution

The fourth proportional to 15,821.99, 23,717.47 and 8,805.36 is: 13,199.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,821.99 : 23,717.47 = 8,805.36 : x
  2. Step 2: Convert to fraction form
    15,821.99/23,717.47 = 8,805.36/x
  3. Step 3: Cross multiply
    15,821.99x = 23,717.47 × 8,805.36
  4. Step 4: Simplify right side
    15,821.99x = 208,840,861.64
  5. Step 5: Solve for x
    x = 208,840,861.64/15,821.99
  6. Step 6: Final answer
    x = 13,199.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.