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Finding the Fourth Proportional to 57,722.20, 86,583.30 and 54,004.30

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Solution

The fourth proportional to 57,722.20, 86,583.30 and 54,004.30 is: 81,006.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,722.20 : 86,583.30 = 54,004.30 : x
  2. Step 2: Convert to fraction form
    57,722.20/86,583.30 = 54,004.30/x
  3. Step 3: Cross multiply
    57,722.20x = 86,583.30 × 54,004.30
  4. Step 4: Simplify right side
    57,722.20x = 4,675,870,508.19
  5. Step 5: Solve for x
    x = 4,675,870,508.19/57,722.20
  6. Step 6: Final answer
    x = 81,006.45

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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.