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Finding the Fourth Proportional to 36,458, 54,687.04 and 8,756

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Solution

The fourth proportional to 36,458, 54,687.04 and 8,756 is: 13,134.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,458 : 54,687.04 = 8,756 : x
  2. Step 2: Convert to fraction form
    36,458/54,687.04 = 8,756/x
  3. Step 3: Cross multiply
    36,458x = 54,687.04 × 8,756
  4. Step 4: Simplify right side
    36,458x = 478,839,722.24
  5. Step 5: Solve for x
    x = 478,839,722.24/36,458
  6. Step 6: Final answer
    x = 13,134.01

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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.