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Finding the Fourth Proportional to 19,572.63, 29,322 and 15,168.54

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Solution

The fourth proportional to 19,572.63, 29,322 and 15,168.54 is: 22,724.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,572.63 : 29,322 = 15,168.54 : x
  2. Step 2: Convert to fraction form
    19,572.63/29,322 = 15,168.54/x
  3. Step 3: Cross multiply
    19,572.63x = 29,322 × 15,168.54
  4. Step 4: Simplify right side
    19,572.63x = 444,771,929.88
  5. Step 5: Solve for x
    x = 444,771,929.88/19,572.63
  6. Step 6: Final answer
    x = 22,724.18

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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.