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Finding the Fourth Proportional to 18,462.99, 27,698.12 and 6,776.31

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Solution

The fourth proportional to 18,462.99, 27,698.12 and 6,776.31 is: 10,165.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,462.99 : 27,698.12 = 6,776.31 : x
  2. Step 2: Convert to fraction form
    18,462.99/27,698.12 = 6,776.31/x
  3. Step 3: Cross multiply
    18,462.99x = 27,698.12 × 6,776.31
  4. Step 4: Simplify right side
    18,462.99x = 187,690,925.99
  5. Step 5: Solve for x
    x = 187,690,925.99/18,462.99
  6. Step 6: Final answer
    x = 10,165.80

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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.