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Finding the Fourth Proportional to 7,067.60, 9,753 and 4,084.28

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Solution

The fourth proportional to 7,067.60, 9,753 and 4,084.28 is: 5,636.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,067.60 : 9,753 = 4,084.28 : x
  2. Step 2: Convert to fraction form
    7,067.60/9,753 = 4,084.28/x
  3. Step 3: Cross multiply
    7,067.60x = 9,753 × 4,084.28
  4. Step 4: Simplify right side
    7,067.60x = 39,833,982.84
  5. Step 5: Solve for x
    x = 39,833,982.84/7,067.60
  6. Step 6: Final answer
    x = 5,636.14

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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.