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Finding the Fourth Proportional to 11,262.05, 15,545.81 and 6,786.05

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Solution

The fourth proportional to 11,262.05, 15,545.81 and 6,786.05 is: 9,367.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,262.05 : 15,545.81 = 6,786.05 : x
  2. Step 2: Convert to fraction form
    11,262.05/15,545.81 = 6,786.05/x
  3. Step 3: Cross multiply
    11,262.05x = 15,545.81 × 6,786.05
  4. Step 4: Simplify right side
    11,262.05x = 105,494,643.95
  5. Step 5: Solve for x
    x = 105,494,643.95/11,262.05
  6. Step 6: Final answer
    x = 9,367.27

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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.