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Finding the Fourth Proportional to 53,366.70, 80,028.45 and 18,288.30

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Solution

The fourth proportional to 53,366.70, 80,028.45 and 18,288.30 is: 27,425.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,366.70 : 80,028.45 = 18,288.30 : x
  2. Step 2: Convert to fraction form
    53,366.70/80,028.45 = 18,288.30/x
  3. Step 3: Cross multiply
    53,366.70x = 80,028.45 × 18,288.30
  4. Step 4: Simplify right side
    53,366.70x = 1,463,584,302.14
  5. Step 5: Solve for x
    x = 1,463,584,302.14/53,366.70
  6. Step 6: Final answer
    x = 27,425.05

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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.