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Finding the Fourth Proportional to 57,223.80, 85,835.70 and 53,998.20

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Solution

The fourth proportional to 57,223.80, 85,835.70 and 53,998.20 is: 80,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,223.80 : 85,835.70 = 53,998.20 : x
  2. Step 2: Convert to fraction form
    57,223.80/85,835.70 = 53,998.20/x
  3. Step 3: Cross multiply
    57,223.80x = 85,835.70 × 53,998.20
  4. Step 4: Simplify right side
    57,223.80x = 4,634,973,295.74
  5. Step 5: Solve for x
    x = 4,634,973,295.74/57,223.80
  6. Step 6: Final answer
    x = 80,997.30

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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.