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Finding the Fourth Proportional to 57,473.87, 79,350.38 and 39,354.91

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Solution

The fourth proportional to 57,473.87, 79,350.38 and 39,354.91 is: 54,334.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,473.87 : 79,350.38 = 39,354.91 : x
  2. Step 2: Convert to fraction form
    57,473.87/79,350.38 = 39,354.91/x
  3. Step 3: Cross multiply
    57,473.87x = 79,350.38 × 39,354.91
  4. Step 4: Simplify right side
    57,473.87x = 3,122,827,113.36
  5. Step 5: Solve for x
    x = 3,122,827,113.36/57,473.87
  6. Step 6: Final answer
    x = 54,334.73

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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.