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Finding the Fourth Proportional to 50,829.68, 70,121.40 and 32,930.72

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Solution

The fourth proportional to 50,829.68, 70,121.40 and 32,930.72 is: 45,429.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,829.68 : 70,121.40 = 32,930.72 : x
  2. Step 2: Convert to fraction form
    50,829.68/70,121.40 = 32,930.72/x
  3. Step 3: Cross multiply
    50,829.68x = 70,121.40 × 32,930.72
  4. Step 4: Simplify right side
    50,829.68x = 2,309,148,189.41
  5. Step 5: Solve for x
    x = 2,309,148,189.41/50,829.68
  6. Step 6: Final answer
    x = 45,429.13

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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.