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Finding the Fourth Proportional to 47,276.52, 70,914.77 and 12,213.44

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Solution

The fourth proportional to 47,276.52, 70,914.77 and 12,213.44 is: 18,320.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,276.52 : 70,914.77 = 12,213.44 : x
  2. Step 2: Convert to fraction form
    47,276.52/70,914.77 = 12,213.44/x
  3. Step 3: Cross multiply
    47,276.52x = 70,914.77 × 12,213.44
  4. Step 4: Simplify right side
    47,276.52x = 866,113,288.51
  5. Step 5: Solve for x
    x = 866,113,288.51/47,276.52
  6. Step 6: Final answer
    x = 18,320.16

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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.