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Finding the Fourth Proportional to 44,162.76, 66,187.98 and 20,757

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Solution

The fourth proportional to 44,162.76, 66,187.98 and 20,757 is: 31,109.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,162.76 : 66,187.98 = 20,757 : x
  2. Step 2: Convert to fraction form
    44,162.76/66,187.98 = 20,757/x
  3. Step 3: Cross multiply
    44,162.76x = 66,187.98 × 20,757
  4. Step 4: Simplify right side
    44,162.76x = 1,373,863,900.86
  5. Step 5: Solve for x
    x = 1,373,863,900.86/44,162.76
  6. Step 6: Final answer
    x = 31,109.10

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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.