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Finding the Fourth Proportional to 11,083.70, 16,625.55 and 5,251.70

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Solution

The fourth proportional to 11,083.70, 16,625.55 and 5,251.70 is: 7,877.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,083.70 : 16,625.55 = 5,251.70 : x
  2. Step 2: Convert to fraction form
    11,083.70/16,625.55 = 5,251.70/x
  3. Step 3: Cross multiply
    11,083.70x = 16,625.55 × 5,251.70
  4. Step 4: Simplify right side
    11,083.70x = 87,312,400.94
  5. Step 5: Solve for x
    x = 87,312,400.94/11,083.70
  6. Step 6: Final answer
    x = 7,877.55

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.