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Finding the Fourth Proportional to 29,978.92, 44,968.56 and 13,335.04

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Solution

The fourth proportional to 29,978.92, 44,968.56 and 13,335.04 is: 20,002.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,978.92 : 44,968.56 = 13,335.04 : x
  2. Step 2: Convert to fraction form
    29,978.92/44,968.56 = 13,335.04/x
  3. Step 3: Cross multiply
    29,978.92x = 44,968.56 × 13,335.04
  4. Step 4: Simplify right side
    29,978.92x = 599,657,546.34
  5. Step 5: Solve for x
    x = 599,657,546.34/29,978.92
  6. Step 6: Final answer
    x = 20,002.64

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