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Finding the Fourth Proportional to 6,992.12, 10,474.68 and 6,637.88

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Solution

The fourth proportional to 6,992.12, 10,474.68 and 6,637.88 is: 9,944.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,992.12 : 10,474.68 = 6,637.88 : x
  2. Step 2: Convert to fraction form
    6,992.12/10,474.68 = 6,637.88/x
  3. Step 3: Cross multiply
    6,992.12x = 10,474.68 × 6,637.88
  4. Step 4: Simplify right side
    6,992.12x = 69,529,668.88
  5. Step 5: Solve for x
    x = 69,529,668.88/6,992.12
  6. Step 6: Final answer
    x = 9,944.00

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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.