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Finding the Fourth Proportional to 11,866.73, 16,375.28 and 6,561.14

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Solution

The fourth proportional to 11,866.73, 16,375.28 and 6,561.14 is: 9,053.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,866.73 : 16,375.28 = 6,561.14 : x
  2. Step 2: Convert to fraction form
    11,866.73/16,375.28 = 6,561.14/x
  3. Step 3: Cross multiply
    11,866.73x = 16,375.28 × 6,561.14
  4. Step 4: Simplify right side
    11,866.73x = 107,440,389.94
  5. Step 5: Solve for x
    x = 107,440,389.94/11,866.73
  6. Step 6: Final answer
    x = 9,053.92

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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.