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Finding the Fourth Proportional to 5,874.48, 8,090.72 and 5,451.64

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Solution

The fourth proportional to 5,874.48, 8,090.72 and 5,451.64 is: 7,508.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,874.48 : 8,090.72 = 5,451.64 : x
  2. Step 2: Convert to fraction form
    5,874.48/8,090.72 = 5,451.64/x
  3. Step 3: Cross multiply
    5,874.48x = 8,090.72 × 5,451.64
  4. Step 4: Simplify right side
    5,874.48x = 44,107,692.78
  5. Step 5: Solve for x
    x = 44,107,692.78/5,874.48
  6. Step 6: Final answer
    x = 7,508.36

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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.