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Finding the Fourth Proportional to 57,020.44, 85,535.22 and 19,565.44

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Solution

The fourth proportional to 57,020.44, 85,535.22 and 19,565.44 is: 29,349.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,020.44 : 85,535.22 = 19,565.44 : x
  2. Step 2: Convert to fraction form
    57,020.44/85,535.22 = 19,565.44/x
  3. Step 3: Cross multiply
    57,020.44x = 85,535.22 × 19,565.44
  4. Step 4: Simplify right side
    57,020.44x = 1,673,534,214.80
  5. Step 5: Solve for x
    x = 1,673,534,214.80/57,020.44
  6. Step 6: Final answer
    x = 29,349.72

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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.