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Finding the Fourth Proportional to 18,863.31, 26,032.05 and 10,366.21

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Solution

The fourth proportional to 18,863.31, 26,032.05 and 10,366.21 is: 14,305.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,863.31 : 26,032.05 = 10,366.21 : x
  2. Step 2: Convert to fraction form
    18,863.31/26,032.05 = 10,366.21/x
  3. Step 3: Cross multiply
    18,863.31x = 26,032.05 × 10,366.21
  4. Step 4: Simplify right side
    18,863.31x = 269,853,729.57
  5. Step 5: Solve for x
    x = 269,853,729.57/18,863.31
  6. Step 6: Final answer
    x = 14,305.74

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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.