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Finding the Fourth Proportional to 64,953.72, 89,631.90 and 36,655.56

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Solution

The fourth proportional to 64,953.72, 89,631.90 and 36,655.56 is: 50,582.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,953.72 : 89,631.90 = 36,655.56 : x
  2. Step 2: Convert to fraction form
    64,953.72/89,631.90 = 36,655.56/x
  3. Step 3: Cross multiply
    64,953.72x = 89,631.90 × 36,655.56
  4. Step 4: Simplify right side
    64,953.72x = 3,285,507,488.36
  5. Step 5: Solve for x
    x = 3,285,507,488.36/64,953.72
  6. Step 6: Final answer
    x = 50,582.28

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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.