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Finding the Fourth Proportional to 64,951.27, 89,631.87 and 36,271.40

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Solution

The fourth proportional to 64,951.27, 89,631.87 and 36,271.40 is: 50,054.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,951.27 : 89,631.87 = 36,271.40 : x
  2. Step 2: Convert to fraction form
    64,951.27/89,631.87 = 36,271.40/x
  3. Step 3: Cross multiply
    64,951.27x = 89,631.87 × 36,271.40
  4. Step 4: Simplify right side
    64,951.27x = 3,251,072,825.34
  5. Step 5: Solve for x
    x = 3,251,072,825.34/64,951.27
  6. Step 6: Final answer
    x = 50,054.03

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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.