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Finding the Fourth Proportional to 15,483.68, 23,228.31 and 5,636.78

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Solution

The fourth proportional to 15,483.68, 23,228.31 and 5,636.78 is: 8,456.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,483.68 : 23,228.31 = 5,636.78 : x
  2. Step 2: Convert to fraction form
    15,483.68/23,228.31 = 5,636.78/x
  3. Step 3: Cross multiply
    15,483.68x = 23,228.31 × 5,636.78
  4. Step 4: Simplify right side
    15,483.68x = 130,932,873.24
  5. Step 5: Solve for x
    x = 130,932,873.24/15,483.68
  6. Step 6: Final answer
    x = 8,456.19

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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.