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Finding the Fourth Proportional to 50,711.67, 69,981.50 and 28,052.33

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Solution

The fourth proportional to 50,711.67, 69,981.50 and 28,052.33 is: 38,711.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,711.67 : 69,981.50 = 28,052.33 : x
  2. Step 2: Convert to fraction form
    50,711.67/69,981.50 = 28,052.33/x
  3. Step 3: Cross multiply
    50,711.67x = 69,981.50 × 28,052.33
  4. Step 4: Simplify right side
    50,711.67x = 1,963,143,852.12
  5. Step 5: Solve for x
    x = 1,963,143,852.12/50,711.67
  6. Step 6: Final answer
    x = 38,711.88

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1.5x scale

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.