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Finding the Fourth Proportional to 47,330.78, 70,984.02 and 14,042.97

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Solution

The fourth proportional to 47,330.78, 70,984.02 and 14,042.97 is: 21,060.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,330.78 : 70,984.02 = 14,042.97 : x
  2. Step 2: Convert to fraction form
    47,330.78/70,984.02 = 14,042.97/x
  3. Step 3: Cross multiply
    47,330.78x = 70,984.02 × 14,042.97
  4. Step 4: Simplify right side
    47,330.78x = 996,826,215.66
  5. Step 5: Solve for x
    x = 996,826,215.66/47,330.78
  6. Step 6: Final answer
    x = 21,060.85

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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.