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Finding the Fourth Proportional to 53,353.90, 80,034.90 and 15,911.04

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Solution

The fourth proportional to 53,353.90, 80,034.90 and 15,911.04 is: 23,867.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,353.90 : 80,034.90 = 15,911.04 : x
  2. Step 2: Convert to fraction form
    53,353.90/80,034.90 = 15,911.04/x
  3. Step 3: Cross multiply
    53,353.90x = 80,034.90 × 15,911.04
  4. Step 4: Simplify right side
    53,353.90x = 1,273,438,495.30
  5. Step 5: Solve for x
    x = 1,273,438,495.30/53,353.90
  6. Step 6: Final answer
    x = 23,867.77

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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.