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Finding the Fourth Proportional to 7,101.09, 9,797.82 and 4,116.34

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Solution

The fourth proportional to 7,101.09, 9,797.82 and 4,116.34 is: 5,679.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,101.09 : 9,797.82 = 4,116.34 : x
  2. Step 2: Convert to fraction form
    7,101.09/9,797.82 = 4,116.34/x
  3. Step 3: Cross multiply
    7,101.09x = 9,797.82 × 4,116.34
  4. Step 4: Simplify right side
    7,101.09x = 40,331,185.64
  5. Step 5: Solve for x
    x = 40,331,185.64/7,101.09
  6. Step 6: Final answer
    x = 5,679.58

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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.