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Finding the Fourth Proportional to 65,047.96, 89,761.26 and 36,756.28

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Solution

The fourth proportional to 65,047.96, 89,761.26 and 36,756.28 is: 50,720.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,047.96 : 89,761.26 = 36,756.28 : x
  2. Step 2: Convert to fraction form
    65,047.96/89,761.26 = 36,756.28/x
  3. Step 3: Cross multiply
    65,047.96x = 89,761.26 × 36,756.28
  4. Step 4: Simplify right side
    65,047.96x = 3,299,290,005.71
  5. Step 5: Solve for x
    x = 3,299,290,005.71/65,047.96
  6. Step 6: Final answer
    x = 50,720.88

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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.