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Finding the Fourth Proportional to 5,759.73, 7,945.14 and 3,988.26

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Solution

The fourth proportional to 5,759.73, 7,945.14 and 3,988.26 is: 5,501.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,759.73 : 7,945.14 = 3,988.26 : x
  2. Step 2: Convert to fraction form
    5,759.73/7,945.14 = 3,988.26/x
  3. Step 3: Cross multiply
    5,759.73x = 7,945.14 × 3,988.26
  4. Step 4: Simplify right side
    5,759.73x = 31,687,284.06
  5. Step 5: Solve for x
    x = 31,687,284.06/5,759.73
  6. Step 6: Final answer
    x = 5,501.52

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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.