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Finding the Fourth Proportional to 70,464.54, 105,696.56 and 17,873.88

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Solution

The fourth proportional to 70,464.54, 105,696.56 and 17,873.88 is: 26,810.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,464.54 : 105,696.56 = 17,873.88 : x
  2. Step 2: Convert to fraction form
    70,464.54/105,696.56 = 17,873.88/x
  3. Step 3: Cross multiply
    70,464.54x = 105,696.56 × 17,873.88
  4. Step 4: Simplify right side
    70,464.54x = 1,889,207,629.85
  5. Step 5: Solve for x
    x = 1,889,207,629.85/70,464.54
  6. Step 6: Final answer
    x = 26,810.76

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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.