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Finding the Fourth Proportional to 55,472.40, 76,550.13 and 31,604.94

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Solution

The fourth proportional to 55,472.40, 76,550.13 and 31,604.94 is: 43,613.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,472.40 : 76,550.13 = 31,604.94 : x
  2. Step 2: Convert to fraction form
    55,472.40/76,550.13 = 31,604.94/x
  3. Step 3: Cross multiply
    55,472.40x = 76,550.13 × 31,604.94
  4. Step 4: Simplify right side
    55,472.40x = 2,419,362,265.64
  5. Step 5: Solve for x
    x = 2,419,362,265.64/55,472.40
  6. Step 6: Final answer
    x = 43,613.80

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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.