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Finding the Fourth Proportional to 57,797.43, 86,699.15 and 18,357.63

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Solution

The fourth proportional to 57,797.43, 86,699.15 and 18,357.63 is: 27,537.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,797.43 : 86,699.15 = 18,357.63 : x
  2. Step 2: Convert to fraction form
    57,797.43/86,699.15 = 18,357.63/x
  3. Step 3: Cross multiply
    57,797.43x = 86,699.15 × 18,357.63
  4. Step 4: Simplify right side
    57,797.43x = 1,591,590,917.01
  5. Step 5: Solve for x
    x = 1,591,590,917.01/57,797.43
  6. Step 6: Final answer
    x = 27,537.40

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1.5x scale

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.