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Finding the Fourth Proportional to 43,978.23, 65,968.56 and 37,699.11

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Solution

The fourth proportional to 43,978.23, 65,968.56 and 37,699.11 is: 56,549.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,978.23 : 65,968.56 = 37,699.11 : x
  2. Step 2: Convert to fraction form
    43,978.23/65,968.56 = 37,699.11/x
  3. Step 3: Cross multiply
    43,978.23x = 65,968.56 × 37,699.11
  4. Step 4: Simplify right side
    43,978.23x = 2,486,955,999.98
  5. Step 5: Solve for x
    x = 2,486,955,999.98/43,978.23
  6. Step 6: Final answer
    x = 56,549.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.