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Finding the Fourth Proportional to 79,840.88, 119,728.37 and 27,254.60

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Solution

The fourth proportional to 79,840.88, 119,728.37 and 27,254.60 is: 40,870.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,840.88 : 119,728.37 = 27,254.60 : x
  2. Step 2: Convert to fraction form
    79,840.88/119,728.37 = 27,254.60/x
  3. Step 3: Cross multiply
    79,840.88x = 119,728.37 × 27,254.60
  4. Step 4: Simplify right side
    79,840.88x = 3,263,148,833.00
  5. Step 5: Solve for x
    x = 3,263,148,833.00/79,840.88
  6. Step 6: Final answer
    x = 40,870.65

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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.