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Finding the Fourth Proportional to 57,101.94, 85,655.31 and 17,659.80

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Solution

The fourth proportional to 57,101.94, 85,655.31 and 17,659.80 is: 26,490.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,101.94 : 85,655.31 = 17,659.80 : x
  2. Step 2: Convert to fraction form
    57,101.94/85,655.31 = 17,659.80/x
  3. Step 3: Cross multiply
    57,101.94x = 85,655.31 × 17,659.80
  4. Step 4: Simplify right side
    57,101.94x = 1,512,655,643.54
  5. Step 5: Solve for x
    x = 1,512,655,643.54/57,101.94
  6. Step 6: Final answer
    x = 26,490.44

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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.