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Finding the Fourth Proportional to 11,958.71, 17,932.59 and 4,165.70

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Solution

The fourth proportional to 11,958.71, 17,932.59 and 4,165.70 is: 6,246.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,958.71 : 17,932.59 = 4,165.70 : x
  2. Step 2: Convert to fraction form
    11,958.71/17,932.59 = 4,165.70/x
  3. Step 3: Cross multiply
    11,958.71x = 17,932.59 × 4,165.70
  4. Step 4: Simplify right side
    11,958.71x = 74,701,700.50
  5. Step 5: Solve for x
    x = 74,701,700.50/11,958.71
  6. Step 6: Final answer
    x = 6,246.64

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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.