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Finding the Fourth Proportional to 11,646.80, 17,472.51 and 3,326.89

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Solution

The fourth proportional to 11,646.80, 17,472.51 and 3,326.89 is: 4,990.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,646.80 : 17,472.51 = 3,326.89 : x
  2. Step 2: Convert to fraction form
    11,646.80/17,472.51 = 3,326.89/x
  3. Step 3: Cross multiply
    11,646.80x = 17,472.51 × 3,326.89
  4. Step 4: Simplify right side
    11,646.80x = 58,129,078.92
  5. Step 5: Solve for x
    x = 58,129,078.92/11,646.80
  6. Step 6: Final answer
    x = 4,990.99

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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.