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Finding the Fourth Proportional to 53,213.40, 79,791.30 and 22,013.40

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Solution

The fourth proportional to 53,213.40, 79,791.30 and 22,013.40 is: 33,008.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,213.40 : 79,791.30 = 22,013.40 : x
  2. Step 2: Convert to fraction form
    53,213.40/79,791.30 = 22,013.40/x
  3. Step 3: Cross multiply
    53,213.40x = 79,791.30 × 22,013.40
  4. Step 4: Simplify right side
    53,213.40x = 1,756,477,803.42
  5. Step 5: Solve for x
    x = 1,756,477,803.42/53,213.40
  6. Step 6: Final answer
    x = 33,008.19

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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.