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Finding the Fourth Proportional to 51,308.55, 76,798.80 and 36,546.30

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Solution

The fourth proportional to 51,308.55, 76,798.80 and 36,546.30 is: 54,702.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,308.55 : 76,798.80 = 36,546.30 : x
  2. Step 2: Convert to fraction form
    51,308.55/76,798.80 = 36,546.30/x
  3. Step 3: Cross multiply
    51,308.55x = 76,798.80 × 36,546.30
  4. Step 4: Simplify right side
    51,308.55x = 2,806,711,984.44
  5. Step 5: Solve for x
    x = 2,806,711,984.44/51,308.55
  6. Step 6: Final answer
    x = 54,702.62

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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.