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Finding the Fourth Proportional to 34,766.72, 47,978.16 and 18,851.04

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Solution

The fourth proportional to 34,766.72, 47,978.16 and 18,851.04 is: 26,014.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,766.72 : 47,978.16 = 18,851.04 : x
  2. Step 2: Convert to fraction form
    34,766.72/47,978.16 = 18,851.04/x
  3. Step 3: Cross multiply
    34,766.72x = 47,978.16 × 18,851.04
  4. Step 4: Simplify right side
    34,766.72x = 904,438,213.29
  5. Step 5: Solve for x
    x = 904,438,213.29/34,766.72
  6. Step 6: Final answer
    x = 26,014.48

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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.