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Finding the Fourth Proportional to 35,572.92, 53,367.08 and 18,930.51

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Solution

The fourth proportional to 35,572.92, 53,367.08 and 18,930.51 is: 28,399.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,572.92 : 53,367.08 = 18,930.51 : x
  2. Step 2: Convert to fraction form
    35,572.92/53,367.08 = 18,930.51/x
  3. Step 3: Cross multiply
    35,572.92x = 53,367.08 × 18,930.51
  4. Step 4: Simplify right side
    35,572.92x = 1,010,266,147.08
  5. Step 5: Solve for x
    x = 1,010,266,147.08/35,572.92
  6. Step 6: Final answer
    x = 28,399.87

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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.