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Finding the Fourth Proportional to 47,288.32, 70,942.86 and 14,010.99

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Solution

The fourth proportional to 47,288.32, 70,942.86 and 14,010.99 is: 21,019.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,288.32 : 70,942.86 = 14,010.99 : x
  2. Step 2: Convert to fraction form
    47,288.32/70,942.86 = 14,010.99/x
  3. Step 3: Cross multiply
    47,288.32x = 70,942.86 × 14,010.99
  4. Step 4: Simplify right side
    47,288.32x = 993,979,702.03
  5. Step 5: Solve for x
    x = 993,979,702.03/47,288.32
  6. Step 6: Final answer
    x = 21,019.56

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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.