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Finding the Fourth Proportional to 8,193.75, 11,308.34 and 4,657.49

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Solution

The fourth proportional to 8,193.75, 11,308.34 and 4,657.49 is: 6,427.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,193.75 : 11,308.34 = 4,657.49 : x
  2. Step 2: Convert to fraction form
    8,193.75/11,308.34 = 4,657.49/x
  3. Step 3: Cross multiply
    8,193.75x = 11,308.34 × 4,657.49
  4. Step 4: Simplify right side
    8,193.75x = 52,668,480.47
  5. Step 5: Solve for x
    x = 52,668,480.47/8,193.75
  6. Step 6: Final answer
    x = 6,427.88

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Half scale
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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.