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Finding the Fourth Proportional to 57,707.64, 86,568.75 and 18,250.52

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Solution

The fourth proportional to 57,707.64, 86,568.75 and 18,250.52 is: 27,378.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,707.64 : 86,568.75 = 18,250.52 : x
  2. Step 2: Convert to fraction form
    57,707.64/86,568.75 = 18,250.52/x
  3. Step 3: Cross multiply
    57,707.64x = 86,568.75 × 18,250.52
  4. Step 4: Simplify right side
    57,707.64x = 1,579,924,270.41
  5. Step 5: Solve for x
    x = 1,579,924,270.41/57,707.64
  6. Step 6: Final answer
    x = 27,378.08

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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.