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Finding the Fourth Proportional to 65,036.28, 89,749.08 and 36,356.58

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Solution

The fourth proportional to 65,036.28, 89,749.08 and 36,356.58 is: 50,171.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,036.28 : 89,749.08 = 36,356.58 : x
  2. Step 2: Convert to fraction form
    65,036.28/89,749.08 = 36,356.58/x
  3. Step 3: Cross multiply
    65,036.28x = 89,749.08 × 36,356.58
  4. Step 4: Simplify right side
    65,036.28x = 3,262,969,606.95
  5. Step 5: Solve for x
    x = 3,262,969,606.95/65,036.28
  6. Step 6: Final answer
    x = 50,171.53

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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.