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Finding the Fourth Proportional to 50,686.67, 69,944.61 and 28,023.88

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Solution

The fourth proportional to 50,686.67, 69,944.61 and 28,023.88 is: 38,671.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,686.67 : 69,944.61 = 28,023.88 : x
  2. Step 2: Convert to fraction form
    50,686.67/69,944.61 = 28,023.88/x
  3. Step 3: Cross multiply
    50,686.67x = 69,944.61 × 28,023.88
  4. Step 4: Simplify right side
    50,686.67x = 1,960,119,357.29
  5. Step 5: Solve for x
    x = 1,960,119,357.29/50,686.67
  6. Step 6: Final answer
    x = 38,671.30

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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.