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Finding the Fourth Proportional to 83,782.96, 125,647.80 and 27,612.60

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Solution

The fourth proportional to 83,782.96, 125,647.80 and 27,612.60 is: 41,410.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,782.96 : 125,647.80 = 27,612.60 : x
  2. Step 2: Convert to fraction form
    83,782.96/125,647.80 = 27,612.60/x
  3. Step 3: Cross multiply
    83,782.96x = 125,647.80 × 27,612.60
  4. Step 4: Simplify right side
    83,782.96x = 3,469,462,442.28
  5. Step 5: Solve for x
    x = 3,469,462,442.28/83,782.96
  6. Step 6: Final answer
    x = 41,410.12

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1.5x scale

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.