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Finding the Fourth Proportional to 66,594, 91,899.72 and 36,786

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Solution

The fourth proportional to 66,594, 91,899.72 and 36,786 is: 50,764.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,594 : 91,899.72 = 36,786 : x
  2. Step 2: Convert to fraction form
    66,594/91,899.72 = 36,786/x
  3. Step 3: Cross multiply
    66,594x = 91,899.72 × 36,786
  4. Step 4: Simplify right side
    66,594x = 3,380,623,099.92
  5. Step 5: Solve for x
    x = 3,380,623,099.92/66,594
  6. Step 6: Final answer
    x = 50,764.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.