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Finding the Fourth Proportional to 65,047.76, 89,765.87 and 36,753.45

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Solution

The fourth proportional to 65,047.76, 89,765.87 and 36,753.45 is: 50,719.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,047.76 : 89,765.87 = 36,753.45 : x
  2. Step 2: Convert to fraction form
    65,047.76/89,765.87 = 36,753.45/x
  3. Step 3: Cross multiply
    65,047.76x = 89,765.87 × 36,753.45
  4. Step 4: Simplify right side
    65,047.76x = 3,299,205,101.10
  5. Step 5: Solve for x
    x = 3,299,205,101.10/65,047.76
  6. Step 6: Final answer
    x = 50,719.74

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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.