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Finding the Fourth Proportional to 57,704.90, 86,596.01 and 20,265.12

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Solution

The fourth proportional to 57,704.90, 86,596.01 and 20,265.12 is: 30,411.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,704.90 : 86,596.01 = 20,265.12 : x
  2. Step 2: Convert to fraction form
    57,704.90/86,596.01 = 20,265.12/x
  3. Step 3: Cross multiply
    57,704.90x = 86,596.01 × 20,265.12
  4. Step 4: Simplify right side
    57,704.90x = 1,754,878,432.85
  5. Step 5: Solve for x
    x = 1,754,878,432.85/57,704.90
  6. Step 6: Final answer
    x = 30,411.26

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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.