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Finding the Fourth Proportional to 5,765.73, 7,952.45 and 3,973.79

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Solution

The fourth proportional to 5,765.73, 7,952.45 and 3,973.79 is: 5,480.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,765.73 : 7,952.45 = 3,973.79 : x
  2. Step 2: Convert to fraction form
    5,765.73/7,952.45 = 3,973.79/x
  3. Step 3: Cross multiply
    5,765.73x = 7,952.45 × 3,973.79
  4. Step 4: Simplify right side
    5,765.73x = 31,601,326.52
  5. Step 5: Solve for x
    x = 31,601,326.52/5,765.73
  6. Step 6: Final answer
    x = 5,480.89

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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.