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Finding the Fourth Proportional to 19,171.71, 26,454.60 and 10,671.71

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Solution

The fourth proportional to 19,171.71, 26,454.60 and 10,671.71 is: 14,725.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,171.71 : 26,454.60 = 10,671.71 : x
  2. Step 2: Convert to fraction form
    19,171.71/26,454.60 = 10,671.71/x
  3. Step 3: Cross multiply
    19,171.71x = 26,454.60 × 10,671.71
  4. Step 4: Simplify right side
    19,171.71x = 282,315,687.09
  5. Step 5: Solve for x
    x = 282,315,687.09/19,171.71
  6. Step 6: Final answer
    x = 14,725.64

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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.