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Finding the Fourth Proportional to 34,674.60, 47,850.61 and 18,758.71

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Solution

The fourth proportional to 34,674.60, 47,850.61 and 18,758.71 is: 25,886.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,674.60 : 47,850.61 = 18,758.71 : x
  2. Step 2: Convert to fraction form
    34,674.60/47,850.61 = 18,758.71/x
  3. Step 3: Cross multiply
    34,674.60x = 47,850.61 × 18,758.71
  4. Step 4: Simplify right side
    34,674.60x = 897,615,716.31
  5. Step 5: Solve for x
    x = 897,615,716.31/34,674.60
  6. Step 6: Final answer
    x = 25,886.84

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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.