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Finding the Fourth Proportional to 50,703.87, 69,971.81 and 28,041.69

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Solution

The fourth proportional to 50,703.87, 69,971.81 and 28,041.69 is: 38,697.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,703.87 : 69,971.81 = 28,041.69 : x
  2. Step 2: Convert to fraction form
    50,703.87/69,971.81 = 28,041.69/x
  3. Step 3: Cross multiply
    50,703.87x = 69,971.81 × 28,041.69
  4. Step 4: Simplify right side
    50,703.87x = 1,962,127,664.55
  5. Step 5: Solve for x
    x = 1,962,127,664.55/50,703.87
  6. Step 6: Final answer
    x = 38,697.79

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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.