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Finding the Fourth Proportional to 37,306.26, 55,959.39 and 12,339.60

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Solution

The fourth proportional to 37,306.26, 55,959.39 and 12,339.60 is: 18,509.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,306.26 : 55,959.39 = 12,339.60 : x
  2. Step 2: Convert to fraction form
    37,306.26/55,959.39 = 12,339.60/x
  3. Step 3: Cross multiply
    37,306.26x = 55,959.39 × 12,339.60
  4. Step 4: Simplify right side
    37,306.26x = 690,516,488.84
  5. Step 5: Solve for x
    x = 690,516,488.84/37,306.26
  6. Step 6: Final answer
    x = 18,509.40

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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.