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Finding the Fourth Proportional to 64,420.49, 96,658.28 and 33,277.61

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Solution

The fourth proportional to 64,420.49, 96,658.28 and 33,277.61 is: 49,930.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,420.49 : 96,658.28 = 33,277.61 : x
  2. Step 2: Convert to fraction form
    64,420.49/96,658.28 = 33,277.61/x
  3. Step 3: Cross multiply
    64,420.49x = 96,658.28 × 33,277.61
  4. Step 4: Simplify right side
    64,420.49x = 3,216,556,545.11
  5. Step 5: Solve for x
    x = 3,216,556,545.11/64,420.49
  6. Step 6: Final answer
    x = 49,930.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.