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Finding the Fourth Proportional to 51,939.01, 77,880.79 and 26,953.90

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Solution

The fourth proportional to 51,939.01, 77,880.79 and 26,953.90 is: 40,416.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,939.01 : 77,880.79 = 26,953.90 : x
  2. Step 2: Convert to fraction form
    51,939.01/77,880.79 = 26,953.90/x
  3. Step 3: Cross multiply
    51,939.01x = 77,880.79 × 26,953.90
  4. Step 4: Simplify right side
    51,939.01x = 2,099,190,864.57
  5. Step 5: Solve for x
    x = 2,099,190,864.57/51,939.01
  6. Step 6: Final answer
    x = 40,416.46

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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.