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Finding the Fourth Proportional to 18,958.71, 26,162.85 and 10,460.91

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Solution

The fourth proportional to 18,958.71, 26,162.85 and 10,460.91 is: 14,435.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,958.71 : 26,162.85 = 10,460.91 : x
  2. Step 2: Convert to fraction form
    18,958.71/26,162.85 = 10,460.91/x
  3. Step 3: Cross multiply
    18,958.71x = 26,162.85 × 10,460.91
  4. Step 4: Simplify right side
    18,958.71x = 273,687,219.19
  5. Step 5: Solve for x
    x = 273,687,219.19/18,958.71
  6. Step 6: Final answer
    x = 14,435.96

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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.