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Finding the Fourth Proportional to 19,671.96, 27,335.86 and 19,469.68

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Solution

The fourth proportional to 19,671.96, 27,335.86 and 19,469.68 is: 27,054.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,671.96 : 27,335.86 = 19,469.68 : x
  2. Step 2: Convert to fraction form
    19,671.96/27,335.86 = 19,469.68/x
  3. Step 3: Cross multiply
    19,671.96x = 27,335.86 × 19,469.68
  4. Step 4: Simplify right side
    19,671.96x = 532,220,446.72
  5. Step 5: Solve for x
    x = 532,220,446.72/19,671.96
  6. Step 6: Final answer
    x = 27,054.77

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.