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Finding the Fourth Proportional to 64,658.70, 89,215.64 and 37,796.01

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Solution

The fourth proportional to 64,658.70, 89,215.64 and 37,796.01 is: 52,150.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,658.70 : 89,215.64 = 37,796.01 : x
  2. Step 2: Convert to fraction form
    64,658.70/89,215.64 = 37,796.01/x
  3. Step 3: Cross multiply
    64,658.70x = 89,215.64 × 37,796.01
  4. Step 4: Simplify right side
    64,658.70x = 3,371,995,032.62
  5. Step 5: Solve for x
    x = 3,371,995,032.62/64,658.70
  6. Step 6: Final answer
    x = 52,150.68

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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.