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Finding the Fourth Proportional to 64,603.73, 96,905.59 and 20,233.95

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Solution

The fourth proportional to 64,603.73, 96,905.59 and 20,233.95 is: 30,350.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,603.73 : 96,905.59 = 20,233.95 : x
  2. Step 2: Convert to fraction form
    64,603.73/96,905.59 = 20,233.95/x
  3. Step 3: Cross multiply
    64,603.73x = 96,905.59 × 20,233.95
  4. Step 4: Simplify right side
    64,603.73x = 1,960,783,155.63
  5. Step 5: Solve for x
    x = 1,960,783,155.63/64,603.73
  6. Step 6: Final answer
    x = 30,350.93

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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.