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Finding the Fourth Proportional to 47,016.30, 70,524.90 and 11,955.96

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Solution

The fourth proportional to 47,016.30, 70,524.90 and 11,955.96 is: 17,934.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,016.30 : 70,524.90 = 11,955.96 : x
  2. Step 2: Convert to fraction form
    47,016.30/70,524.90 = 11,955.96/x
  3. Step 3: Cross multiply
    47,016.30x = 70,524.90 × 11,955.96
  4. Step 4: Simplify right side
    47,016.30x = 843,192,883.40
  5. Step 5: Solve for x
    x = 843,192,883.40/47,016.30
  6. Step 6: Final answer
    x = 17,934.05

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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.