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Finding the Fourth Proportional to 40,708.70, 61,060.89 and 13,004.54

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Solution

The fourth proportional to 40,708.70, 61,060.89 and 13,004.54 is: 19,506.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,708.70 : 61,060.89 = 13,004.54 : x
  2. Step 2: Convert to fraction form
    40,708.70/61,060.89 = 13,004.54/x
  3. Step 3: Cross multiply
    40,708.70x = 61,060.89 × 13,004.54
  4. Step 4: Simplify right side
    40,708.70x = 794,068,786.44
  5. Step 5: Solve for x
    x = 794,068,786.44/40,708.70
  6. Step 6: Final answer
    x = 19,506.12

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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.