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Finding the Fourth Proportional to 34,767.43, 47,978.93 and 18,851.94

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Solution

The fourth proportional to 34,767.43, 47,978.93 and 18,851.94 is: 26,015.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,767.43 : 47,978.93 = 18,851.94 : x
  2. Step 2: Convert to fraction form
    34,767.43/47,978.93 = 18,851.94/x
  3. Step 3: Cross multiply
    34,767.43x = 47,978.93 × 18,851.94
  4. Step 4: Simplify right side
    34,767.43x = 904,495,956.75
  5. Step 5: Solve for x
    x = 904,495,956.75/34,767.43
  6. Step 6: Final answer
    x = 26,015.61

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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.