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Finding the Fourth Proportional to 20,588.80, 30,850.24 and 20,042.04

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Solution

The fourth proportional to 20,588.80, 30,850.24 and 20,042.04 is: 30,030.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,588.80 : 30,850.24 = 20,042.04 : x
  2. Step 2: Convert to fraction form
    20,588.80/30,850.24 = 20,042.04/x
  3. Step 3: Cross multiply
    20,588.80x = 30,850.24 × 20,042.04
  4. Step 4: Simplify right side
    20,588.80x = 618,301,744.09
  5. Step 5: Solve for x
    x = 618,301,744.09/20,588.80
  6. Step 6: Final answer
    x = 30,030.98

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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.