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Finding the Fourth Proportional to 5,648.88, 8,473.56 and 2,186.64

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Solution

The fourth proportional to 5,648.88, 8,473.56 and 2,186.64 is: 3,280.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,648.88 : 8,473.56 = 2,186.64 : x
  2. Step 2: Convert to fraction form
    5,648.88/8,473.56 = 2,186.64/x
  3. Step 3: Cross multiply
    5,648.88x = 8,473.56 × 2,186.64
  4. Step 4: Simplify right side
    5,648.88x = 18,528,625.24
  5. Step 5: Solve for x
    x = 18,528,625.24/5,648.88
  6. Step 6: Final answer
    x = 3,280.05

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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.