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Finding the Fourth Proportional to 51,690.42, 71,332.83 and 29,334.42

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Solution

The fourth proportional to 51,690.42, 71,332.83 and 29,334.42 is: 40,481.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,690.42 : 71,332.83 = 29,334.42 : x
  2. Step 2: Convert to fraction form
    51,690.42/71,332.83 = 29,334.42/x
  3. Step 3: Cross multiply
    51,690.42x = 71,332.83 × 29,334.42
  4. Step 4: Simplify right side
    51,690.42x = 2,092,507,195.01
  5. Step 5: Solve for x
    x = 2,092,507,195.01/51,690.42
  6. Step 6: Final answer
    x = 40,481.53

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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.