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Finding the Fourth Proportional to 6,682.61, 9,218.36 and 4,662.87

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Solution

The fourth proportional to 6,682.61, 9,218.36 and 4,662.87 is: 6,432.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,682.61 : 9,218.36 = 4,662.87 : x
  2. Step 2: Convert to fraction form
    6,682.61/9,218.36 = 4,662.87/x
  3. Step 3: Cross multiply
    6,682.61x = 9,218.36 × 4,662.87
  4. Step 4: Simplify right side
    6,682.61x = 42,983,990.98
  5. Step 5: Solve for x
    x = 42,983,990.98/6,682.61
  6. Step 6: Final answer
    x = 6,432.22

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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.