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Finding the Fourth Proportional to 7,047.27, 9,725.13 and 3,860.52

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Solution

The fourth proportional to 7,047.27, 9,725.13 and 3,860.52 is: 5,327.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,047.27 : 9,725.13 = 3,860.52 : x
  2. Step 2: Convert to fraction form
    7,047.27/9,725.13 = 3,860.52/x
  3. Step 3: Cross multiply
    7,047.27x = 9,725.13 × 3,860.52
  4. Step 4: Simplify right side
    7,047.27x = 37,544,058.87
  5. Step 5: Solve for x
    x = 37,544,058.87/7,047.27
  6. Step 6: Final answer
    x = 5,327.46

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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.