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Finding the Fourth Proportional to 44,119.76, 66,190.70 and 12,955

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Solution

The fourth proportional to 44,119.76, 66,190.70 and 12,955 is: 19,435.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,119.76 : 66,190.70 = 12,955 : x
  2. Step 2: Convert to fraction form
    44,119.76/66,190.70 = 12,955/x
  3. Step 3: Cross multiply
    44,119.76x = 66,190.70 × 12,955
  4. Step 4: Simplify right side
    44,119.76x = 857,500,518.50
  5. Step 5: Solve for x
    x = 857,500,518.50/44,119.76
  6. Step 6: Final answer
    x = 19,435.75

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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.