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Finding the Fourth Proportional to 66,383.40, 91,604.82 and 39,527.88

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Solution

The fourth proportional to 66,383.40, 91,604.82 and 39,527.88 is: 54,545.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,383.40 : 91,604.82 = 39,527.88 : x
  2. Step 2: Convert to fraction form
    66,383.40/91,604.82 = 39,527.88/x
  3. Step 3: Cross multiply
    66,383.40x = 91,604.82 × 39,527.88
  4. Step 4: Simplify right side
    66,383.40x = 3,620,944,332.38
  5. Step 5: Solve for x
    x = 3,620,944,332.38/66,383.40
  6. Step 6: Final answer
    x = 54,545.93

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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.