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Finding the Fourth Proportional to 5,567.97, 7,679.03 and 3,971.58

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Solution

The fourth proportional to 5,567.97, 7,679.03 and 3,971.58 is: 5,477.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,567.97 : 7,679.03 = 3,971.58 : x
  2. Step 2: Convert to fraction form
    5,567.97/7,679.03 = 3,971.58/x
  3. Step 3: Cross multiply
    5,567.97x = 7,679.03 × 3,971.58
  4. Step 4: Simplify right side
    5,567.97x = 30,497,823.71
  5. Step 5: Solve for x
    x = 30,497,823.71/5,567.97
  6. Step 6: Final answer
    x = 5,477.37

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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.