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Finding the Fourth Proportional to 57,407.88, 86,110.86 and 17,964.60

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Solution

The fourth proportional to 57,407.88, 86,110.86 and 17,964.60 is: 26,946.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,407.88 : 86,110.86 = 17,964.60 : x
  2. Step 2: Convert to fraction form
    57,407.88/86,110.86 = 17,964.60/x
  3. Step 3: Cross multiply
    57,407.88x = 86,110.86 × 17,964.60
  4. Step 4: Simplify right side
    57,407.88x = 1,546,947,155.56
  5. Step 5: Solve for x
    x = 1,546,947,155.56/57,407.88
  6. Step 6: Final answer
    x = 26,946.60

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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.