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Finding the Fourth Proportional to 56,585.48, 84,855.92 and 20,553.41

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Solution

The fourth proportional to 56,585.48, 84,855.92 and 20,553.41 is: 30,822.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,585.48 : 84,855.92 = 20,553.41 : x
  2. Step 2: Convert to fraction form
    56,585.48/84,855.92 = 20,553.41/x
  3. Step 3: Cross multiply
    56,585.48x = 84,855.92 × 20,553.41
  4. Step 4: Simplify right side
    56,585.48x = 1,744,077,987.64
  5. Step 5: Solve for x
    x = 1,744,077,987.64/56,585.48
  6. Step 6: Final answer
    x = 30,822.01

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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.