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Finding the Fourth Proportional to 21,696.94, 32,545.41 and 11,328.94

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Solution

The fourth proportional to 21,696.94, 32,545.41 and 11,328.94 is: 16,993.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,696.94 : 32,545.41 = 11,328.94 : x
  2. Step 2: Convert to fraction form
    21,696.94/32,545.41 = 11,328.94/x
  3. Step 3: Cross multiply
    21,696.94x = 32,545.41 × 11,328.94
  4. Step 4: Simplify right side
    21,696.94x = 368,704,997.17
  5. Step 5: Solve for x
    x = 368,704,997.17/21,696.94
  6. Step 6: Final answer
    x = 16,993.41

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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.