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Finding the Fourth Proportional to 57,643.79, 86,463.52 and 18,203.27

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Solution

The fourth proportional to 57,643.79, 86,463.52 and 18,203.27 is: 27,304.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,643.79 : 86,463.52 = 18,203.27 : x
  2. Step 2: Convert to fraction form
    57,643.79/86,463.52 = 18,203.27/x
  3. Step 3: Cross multiply
    57,643.79x = 86,463.52 × 18,203.27
  4. Step 4: Simplify right side
    57,643.79x = 1,573,918,799.71
  5. Step 5: Solve for x
    x = 1,573,918,799.71/57,643.79
  6. Step 6: Final answer
    x = 27,304.22

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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.