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Finding the Fourth Proportional to 63,505.68, 87,620 and 50,035.12

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Solution

The fourth proportional to 63,505.68, 87,620 and 50,035.12 is: 69,034.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,505.68 : 87,620 = 50,035.12 : x
  2. Step 2: Convert to fraction form
    63,505.68/87,620 = 50,035.12/x
  3. Step 3: Cross multiply
    63,505.68x = 87,620 × 50,035.12
  4. Step 4: Simplify right side
    63,505.68x = 4,384,077,214.40
  5. Step 5: Solve for x
    x = 4,384,077,214.40/63,505.68
  6. Step 6: Final answer
    x = 69,034.41

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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.