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Finding the Fourth Proportional to 79,365.80, 109,517.57 and 47,094.85

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Solution

The fourth proportional to 79,365.80, 109,517.57 and 47,094.85 is: 64,986.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,365.80 : 109,517.57 = 47,094.85 : x
  2. Step 2: Convert to fraction form
    79,365.80/109,517.57 = 47,094.85/x
  3. Step 3: Cross multiply
    79,365.80x = 109,517.57 × 47,094.85
  4. Step 4: Simplify right side
    79,365.80x = 5,157,713,628.70
  5. Step 5: Solve for x
    x = 5,157,713,628.70/79,365.80
  6. Step 6: Final answer
    x = 64,986.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.