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Finding the Fourth Proportional to 64,495.04, 89,005.44 and 37,654.72

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Solution

The fourth proportional to 64,495.04, 89,005.44 and 37,654.72 is: 51,964.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,495.04 : 89,005.44 = 37,654.72 : x
  2. Step 2: Convert to fraction form
    64,495.04/89,005.44 = 37,654.72/x
  3. Step 3: Cross multiply
    64,495.04x = 89,005.44 × 37,654.72
  4. Step 4: Simplify right side
    64,495.04x = 3,351,474,921.68
  5. Step 5: Solve for x
    x = 3,351,474,921.68/64,495.04
  6. Step 6: Final answer
    x = 51,964.85

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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.