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Finding the Fourth Proportional to 57,259.62, 79,018.14 and 31,769.85

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Solution

The fourth proportional to 57,259.62, 79,018.14 and 31,769.85 is: 43,842.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,259.62 : 79,018.14 = 31,769.85 : x
  2. Step 2: Convert to fraction form
    57,259.62/79,018.14 = 31,769.85/x
  3. Step 3: Cross multiply
    57,259.62x = 79,018.14 × 31,769.85
  4. Step 4: Simplify right side
    57,259.62x = 2,510,394,455.08
  5. Step 5: Solve for x
    x = 2,510,394,455.08/57,259.62
  6. Step 6: Final answer
    x = 43,842.32

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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.