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Finding the Fourth Proportional to 73,086.60, 109,629.90 and 26,344.20

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Solution

The fourth proportional to 73,086.60, 109,629.90 and 26,344.20 is: 39,516.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,086.60 : 109,629.90 = 26,344.20 : x
  2. Step 2: Convert to fraction form
    73,086.60/109,629.90 = 26,344.20/x
  3. Step 3: Cross multiply
    73,086.60x = 109,629.90 × 26,344.20
  4. Step 4: Simplify right side
    73,086.60x = 2,888,112,011.58
  5. Step 5: Solve for x
    x = 2,888,112,011.58/73,086.60
  6. Step 6: Final answer
    x = 39,516.30

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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.