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Finding the Fourth Proportional to 57,195.60, 85,806.90 and 19,755.99

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Solution

The fourth proportional to 57,195.60, 85,806.90 and 19,755.99 is: 29,638.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,195.60 : 85,806.90 = 19,755.99 : x
  2. Step 2: Convert to fraction form
    57,195.60/85,806.90 = 19,755.99/x
  3. Step 3: Cross multiply
    57,195.60x = 85,806.90 × 19,755.99
  4. Step 4: Simplify right side
    57,195.60x = 1,695,199,829.30
  5. Step 5: Solve for x
    x = 1,695,199,829.30/57,195.60
  6. Step 6: Final answer
    x = 29,638.64

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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.