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Finding the Fourth Proportional to 18,473.60, 25,493.72 and 10,516.34

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Solution

The fourth proportional to 18,473.60, 25,493.72 and 10,516.34 is: 14,512.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,473.60 : 25,493.72 = 10,516.34 : x
  2. Step 2: Convert to fraction form
    18,473.60/25,493.72 = 10,516.34/x
  3. Step 3: Cross multiply
    18,473.60x = 25,493.72 × 10,516.34
  4. Step 4: Simplify right side
    18,473.60x = 268,100,627.38
  5. Step 5: Solve for x
    x = 268,100,627.38/18,473.60
  6. Step 6: Final answer
    x = 14,512.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.