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Finding the Fourth Proportional to 5,671.32, 8,506.96 and 3,090.66

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Solution

The fourth proportional to 5,671.32, 8,506.96 and 3,090.66 is: 4,635.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,671.32 : 8,506.96 = 3,090.66 : x
  2. Step 2: Convert to fraction form
    5,671.32/8,506.96 = 3,090.66/x
  3. Step 3: Cross multiply
    5,671.32x = 8,506.96 × 3,090.66
  4. Step 4: Simplify right side
    5,671.32x = 26,292,120.99
  5. Step 5: Solve for x
    x = 26,292,120.99/5,671.32
  6. Step 6: Final answer
    x = 4,635.98

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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.