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Finding the Fourth Proportional to 66,918.98, 92,348.32 and 36,704.54

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Solution

The fourth proportional to 66,918.98, 92,348.32 and 36,704.54 is: 50,652.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,918.98 : 92,348.32 = 36,704.54 : x
  2. Step 2: Convert to fraction form
    66,918.98/92,348.32 = 36,704.54/x
  3. Step 3: Cross multiply
    66,918.98x = 92,348.32 × 36,704.54
  4. Step 4: Simplify right side
    66,918.98x = 3,389,602,744.48
  5. Step 5: Solve for x
    x = 3,389,602,744.48/66,918.98
  6. Step 6: Final answer
    x = 50,652.34

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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.