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Finding the Fourth Proportional to 59,909.72, 82,672.36 and 36,031.80

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Solution

The fourth proportional to 59,909.72, 82,672.36 and 36,031.80 is: 49,722.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,909.72 : 82,672.36 = 36,031.80 : x
  2. Step 2: Convert to fraction form
    59,909.72/82,672.36 = 36,031.80/x
  3. Step 3: Cross multiply
    59,909.72x = 82,672.36 × 36,031.80
  4. Step 4: Simplify right side
    59,909.72x = 2,978,833,941.05
  5. Step 5: Solve for x
    x = 2,978,833,941.05/59,909.72
  6. Step 6: Final answer
    x = 49,722.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.