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Finding the Fourth Proportional to 57,067.79, 85,605.80 and 17,619.80

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Solution

The fourth proportional to 57,067.79, 85,605.80 and 17,619.80 is: 26,430.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,067.79 : 85,605.80 = 17,619.80 : x
  2. Step 2: Convert to fraction form
    57,067.79/85,605.80 = 17,619.80/x
  3. Step 3: Cross multiply
    57,067.79x = 85,605.80 × 17,619.80
  4. Step 4: Simplify right side
    57,067.79x = 1,508,356,558.71
  5. Step 5: Solve for x
    x = 1,508,356,558.71/57,067.79
  6. Step 6: Final answer
    x = 26,430.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.