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Finding the Fourth Proportional to 6,266.76, 8,649.84 and 3,907.50

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Solution

The fourth proportional to 6,266.76, 8,649.84 and 3,907.50 is: 5,393.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,266.76 : 8,649.84 = 3,907.50 : x
  2. Step 2: Convert to fraction form
    6,266.76/8,649.84 = 3,907.50/x
  3. Step 3: Cross multiply
    6,266.76x = 8,649.84 × 3,907.50
  4. Step 4: Simplify right side
    6,266.76x = 33,799,249.80
  5. Step 5: Solve for x
    x = 33,799,249.80/6,266.76
  6. Step 6: Final answer
    x = 5,393.42

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