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Finding the Fourth Proportional to 70,664.35, 105,930.64 and 23,884.51

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Solution

The fourth proportional to 70,664.35, 105,930.64 and 23,884.51 is: 35,804.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,664.35 : 105,930.64 = 23,884.51 : x
  2. Step 2: Convert to fraction form
    70,664.35/105,930.64 = 23,884.51/x
  3. Step 3: Cross multiply
    70,664.35x = 105,930.64 × 23,884.51
  4. Step 4: Simplify right side
    70,664.35x = 2,530,101,430.39
  5. Step 5: Solve for x
    x = 2,530,101,430.39/70,664.35
  6. Step 6: Final answer
    x = 35,804.50

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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.