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Finding the Fourth Proportional to 47,081, 70,621.66 and 14,249

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Solution

The fourth proportional to 47,081, 70,621.66 and 14,249 is: 21,373.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,081 : 70,621.66 = 14,249 : x
  2. Step 2: Convert to fraction form
    47,081/70,621.66 = 14,249/x
  3. Step 3: Cross multiply
    47,081x = 70,621.66 × 14,249
  4. Step 4: Simplify right side
    47,081x = 1,006,288,033.34
  5. Step 5: Solve for x
    x = 1,006,288,033.34/47,081
  6. Step 6: Final answer
    x = 21,373.55

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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.