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Finding the Fourth Proportional to 66,483.51, 91,747.68 and 36,269.31

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Solution

The fourth proportional to 66,483.51, 91,747.68 and 36,269.31 is: 50,051.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,483.51 : 91,747.68 = 36,269.31 : x
  2. Step 2: Convert to fraction form
    66,483.51/91,747.68 = 36,269.31/x
  3. Step 3: Cross multiply
    66,483.51x = 91,747.68 × 36,269.31
  4. Step 4: Simplify right side
    66,483.51x = 3,327,625,047.70
  5. Step 5: Solve for x
    x = 3,327,625,047.70/66,483.51
  6. Step 6: Final answer
    x = 50,051.89

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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.