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Finding the Fourth Proportional to 57,573.08, 86,362.71 and 18,133.28

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Solution

The fourth proportional to 57,573.08, 86,362.71 and 18,133.28 is: 27,200.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,573.08 : 86,362.71 = 18,133.28 : x
  2. Step 2: Convert to fraction form
    57,573.08/86,362.71 = 18,133.28/x
  3. Step 3: Cross multiply
    57,573.08x = 86,362.71 × 18,133.28
  4. Step 4: Simplify right side
    57,573.08x = 1,566,039,201.99
  5. Step 5: Solve for x
    x = 1,566,039,201.99/57,573.08
  6. Step 6: Final answer
    x = 27,200.89

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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.