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Finding the Third Proportional to 15,882.75 and 21,583.13

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Solution

The third proportional to 15,882.75 and 21,583.13 is: 29,329.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,882.75 : 21,583.13 = 21,583.13 : x
  2. Step 2: Convert to fraction form
    15,882.75/21,583.13 = 21,583.13/x
  3. Step 3: Cross multiply
    15,882.75x = 21,583.13 × 21,583.13
  4. Step 4: Simplify right side
    15,882.75x = 465,831,284.77
  5. Step 5: Solve for x
    x = 465,831,284.77/15,882.75
  6. Step 6: Final answer
    x = 29,329.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.