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Finding the Fourth Proportional to 66,893.06, 92,311.71 and 36,678.29

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Solution

The fourth proportional to 66,893.06, 92,311.71 and 36,678.29 is: 50,615.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,893.06 : 92,311.71 = 36,678.29 : x
  2. Step 2: Convert to fraction form
    66,893.06/92,311.71 = 36,678.29/x
  3. Step 3: Cross multiply
    66,893.06x = 92,311.71 × 36,678.29
  4. Step 4: Simplify right side
    66,893.06x = 3,385,835,024.83
  5. Step 5: Solve for x
    x = 3,385,835,024.83/66,893.06
  6. Step 6: Final answer
    x = 50,615.64

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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.