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Finding the Fourth Proportional to 66,539.48, 91,823.02 and 36,323.64

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Solution

The fourth proportional to 66,539.48, 91,823.02 and 36,323.64 is: 50,125.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,539.48 : 91,823.02 = 36,323.64 : x
  2. Step 2: Convert to fraction form
    66,539.48/91,823.02 = 36,323.64/x
  3. Step 3: Cross multiply
    66,539.48x = 91,823.02 × 36,323.64
  4. Step 4: Simplify right side
    66,539.48x = 3,335,346,231.38
  5. Step 5: Solve for x
    x = 3,335,346,231.38/66,539.48
  6. Step 6: Final answer
    x = 50,125.83

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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.