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Finding the Fourth Proportional to 15,821.00, 23,719.78 and 9,579.54

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Solution

The fourth proportional to 15,821.00, 23,719.78 and 9,579.54 is: 14,362.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,821.00 : 23,719.78 = 9,579.54 : x
  2. Step 2: Convert to fraction form
    15,821.00/23,719.78 = 9,579.54/x
  3. Step 3: Cross multiply
    15,821.00x = 23,719.78 × 9,579.54
  4. Step 4: Simplify right side
    15,821.00x = 227,224,581.30
  5. Step 5: Solve for x
    x = 227,224,581.30/15,821.00
  6. Step 6: Final answer
    x = 14,362.22

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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.