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Finding the Fourth Proportional to 56,887.63, 85,324.78 and 35,765.31

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Solution

The fourth proportional to 56,887.63, 85,324.78 and 35,765.31 is: 53,643.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,887.63 : 85,324.78 = 35,765.31 : x
  2. Step 2: Convert to fraction form
    56,887.63/85,324.78 = 35,765.31/x
  3. Step 3: Cross multiply
    56,887.63x = 85,324.78 × 35,765.31
  4. Step 4: Simplify right side
    56,887.63x = 3,051,667,161.80
  5. Step 5: Solve for x
    x = 3,051,667,161.80/56,887.63
  6. Step 6: Final answer
    x = 53,643.77

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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.