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Finding the Fourth Proportional to 57,191.20, 85,795.08 and 17,751.50

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Solution

The fourth proportional to 57,191.20, 85,795.08 and 17,751.50 is: 26,629.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,191.20 : 85,795.08 = 17,751.50 : x
  2. Step 2: Convert to fraction form
    57,191.20/85,795.08 = 17,751.50/x
  3. Step 3: Cross multiply
    57,191.20x = 85,795.08 × 17,751.50
  4. Step 4: Simplify right side
    57,191.20x = 1,522,991,362.62
  5. Step 5: Solve for x
    x = 1,522,991,362.62/57,191.20
  6. Step 6: Final answer
    x = 26,629.82

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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.