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Finding the Fourth Proportional to 8,184.88, 11,221.72 and 8,037.40

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Solution

The fourth proportional to 8,184.88, 11,221.72 and 8,037.40 is: 11,019.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,184.88 : 11,221.72 = 8,037.40 : x
  2. Step 2: Convert to fraction form
    8,184.88/11,221.72 = 8,037.40/x
  3. Step 3: Cross multiply
    8,184.88x = 11,221.72 × 8,037.40
  4. Step 4: Simplify right side
    8,184.88x = 90,193,452.33
  5. Step 5: Solve for x
    x = 90,193,452.33/8,184.88
  6. Step 6: Final answer
    x = 11,019.52

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.