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Finding the Fourth Proportional to 53,310.60, 79,965.90 and 27,066.60

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Solution

The fourth proportional to 53,310.60, 79,965.90 and 27,066.60 is: 40,599.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,310.60 : 79,965.90 = 27,066.60 : x
  2. Step 2: Convert to fraction form
    53,310.60/79,965.90 = 27,066.60/x
  3. Step 3: Cross multiply
    53,310.60x = 79,965.90 × 27,066.60
  4. Step 4: Simplify right side
    53,310.60x = 2,164,405,028.94
  5. Step 5: Solve for x
    x = 2,164,405,028.94/53,310.60
  6. Step 6: Final answer
    x = 40,599.90

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Similar ratio
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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.