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Finding the Fourth Proportional to 6,633.88, 9,135.01 and 6,486.55

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Solution

The fourth proportional to 6,633.88, 9,135.01 and 6,486.55 is: 8,932.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,633.88 : 9,135.01 = 6,486.55 : x
  2. Step 2: Convert to fraction form
    6,633.88/9,135.01 = 6,486.55/x
  3. Step 3: Cross multiply
    6,633.88x = 9,135.01 × 6,486.55
  4. Step 4: Simplify right side
    6,633.88x = 59,254,662.69
  5. Step 5: Solve for x
    x = 59,254,662.69/6,633.88
  6. Step 6: Final answer
    x = 8,932.12

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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.