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Finding the Fourth Proportional to 40,661.70, 60,984.45 and 19,601.70

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Solution

The fourth proportional to 40,661.70, 60,984.45 and 19,601.70 is: 29,398.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,661.70 : 60,984.45 = 19,601.70 : x
  2. Step 2: Convert to fraction form
    40,661.70/60,984.45 = 19,601.70/x
  3. Step 3: Cross multiply
    40,661.70x = 60,984.45 × 19,601.70
  4. Step 4: Simplify right side
    40,661.70x = 1,195,398,893.57
  5. Step 5: Solve for x
    x = 1,195,398,893.57/40,661.70
  6. Step 6: Final answer
    x = 29,398.65

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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.