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Finding the Fourth Proportional to 56,840.88, 85,290.12 and 38,334

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Solution

The fourth proportional to 56,840.88, 85,290.12 and 38,334 is: 57,520.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,840.88 : 85,290.12 = 38,334 : x
  2. Step 2: Convert to fraction form
    56,840.88/85,290.12 = 38,334/x
  3. Step 3: Cross multiply
    56,840.88x = 85,290.12 × 38,334
  4. Step 4: Simplify right side
    56,840.88x = 3,269,511,460.08
  5. Step 5: Solve for x
    x = 3,269,511,460.08/56,840.88
  6. Step 6: Final answer
    x = 57,520.42

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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.