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Finding the Fourth Proportional to 11,545.68, 15,932.07 and 6,511.14

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Solution

The fourth proportional to 11,545.68, 15,932.07 and 6,511.14 is: 8,984.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,545.68 : 15,932.07 = 6,511.14 : x
  2. Step 2: Convert to fraction form
    11,545.68/15,932.07 = 6,511.14/x
  3. Step 3: Cross multiply
    11,545.68x = 15,932.07 × 6,511.14
  4. Step 4: Simplify right side
    11,545.68x = 103,735,938.26
  5. Step 5: Solve for x
    x = 103,735,938.26/11,545.68
  6. Step 6: Final answer
    x = 8,984.83

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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.