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Finding the Fourth Proportional to 53,340, 73,609.20 and 29,788

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Solution

The fourth proportional to 53,340, 73,609.20 and 29,788 is: 41,107.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,340 : 73,609.20 = 29,788 : x
  2. Step 2: Convert to fraction form
    53,340/73,609.20 = 29,788/x
  3. Step 3: Cross multiply
    53,340x = 73,609.20 × 29,788
  4. Step 4: Simplify right side
    53,340x = 2,192,670,849.60
  5. Step 5: Solve for x
    x = 2,192,670,849.60/53,340
  6. Step 6: Final answer
    x = 41,107.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.