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Finding the Fourth Proportional to 57,765.69, 79,697.12 and 37,648.53

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Solution

The fourth proportional to 57,765.69, 79,697.12 and 37,648.53 is: 51,942.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,765.69 : 79,697.12 = 37,648.53 : x
  2. Step 2: Convert to fraction form
    57,765.69/79,697.12 = 37,648.53/x
  3. Step 3: Cross multiply
    57,765.69x = 79,697.12 × 37,648.53
  4. Step 4: Simplify right side
    57,765.69x = 3,000,479,224.99
  5. Step 5: Solve for x
    x = 3,000,479,224.99/57,765.69
  6. Step 6: Final answer
    x = 51,942.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.