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Finding the Fourth Proportional to 6,381.44, 8,806.37 and 3,548.73

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Solution

The fourth proportional to 6,381.44, 8,806.37 and 3,548.73 is: 4,897.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381.44 : 8,806.37 = 3,548.73 : x
  2. Step 2: Convert to fraction form
    6,381.44/8,806.37 = 3,548.73/x
  3. Step 3: Cross multiply
    6,381.44x = 8,806.37 × 3,548.73
  4. Step 4: Simplify right side
    6,381.44x = 31,251,429.41
  5. Step 5: Solve for x
    x = 31,251,429.41/6,381.44
  6. Step 6: Final answer
    x = 4,897.24

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Half scale
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Double scale
Find fourth proportional to 6,382.44, 8,807.75 and 3,549.73
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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.