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Finding the Fourth Proportional to 64,900.44, 89,553.87 and 36,216.72

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Solution

The fourth proportional to 64,900.44, 89,553.87 and 36,216.72 is: 49,974.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,900.44 : 89,553.87 = 36,216.72 : x
  2. Step 2: Convert to fraction form
    64,900.44/89,553.87 = 36,216.72/x
  3. Step 3: Cross multiply
    64,900.44x = 89,553.87 × 36,216.72
  4. Step 4: Simplify right side
    64,900.44x = 3,243,347,434.71
  5. Step 5: Solve for x
    x = 3,243,347,434.71/64,900.44
  6. Step 6: Final answer
    x = 49,974.20

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1.5x scale

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.