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Finding the Fourth Proportional to 56,478.68, 84,690.65 and 17,028.44

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Solution

The fourth proportional to 56,478.68, 84,690.65 and 17,028.44 is: 25,534.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,478.68 : 84,690.65 = 17,028.44 : x
  2. Step 2: Convert to fraction form
    56,478.68/84,690.65 = 17,028.44/x
  3. Step 3: Cross multiply
    56,478.68x = 84,690.65 × 17,028.44
  4. Step 4: Simplify right side
    56,478.68x = 1,442,149,652.09
  5. Step 5: Solve for x
    x = 1,442,149,652.09/56,478.68
  6. Step 6: Final answer
    x = 25,534.41

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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.