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Finding the Fourth Proportional to 51,955.62, 77,962.53 and 20,793.30

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Solution

The fourth proportional to 51,955.62, 77,962.53 and 20,793.30 is: 31,201.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,955.62 : 77,962.53 = 20,793.30 : x
  2. Step 2: Convert to fraction form
    51,955.62/77,962.53 = 20,793.30/x
  3. Step 3: Cross multiply
    51,955.62x = 77,962.53 × 20,793.30
  4. Step 4: Simplify right side
    51,955.62x = 1,621,098,275.05
  5. Step 5: Solve for x
    x = 1,621,098,275.05/51,955.62
  6. Step 6: Final answer
    x = 31,201.60

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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.