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Finding the Fourth Proportional to 20,593.90, 30,863.04 and 15,021.10

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Solution

The fourth proportional to 20,593.90, 30,863.04 and 15,021.10 is: 22,511.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,593.90 : 30,863.04 = 15,021.10 : x
  2. Step 2: Convert to fraction form
    20,593.90/30,863.04 = 15,021.10/x
  3. Step 3: Cross multiply
    20,593.90x = 30,863.04 × 15,021.10
  4. Step 4: Simplify right side
    20,593.90x = 463,596,810.14
  5. Step 5: Solve for x
    x = 463,596,810.14/20,593.90
  6. Step 6: Final answer
    x = 22,511.37

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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.