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Finding the Fourth Proportional to 7,705.98, 10,634.19 and 4,169.12

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Solution

The fourth proportional to 7,705.98, 10,634.19 and 4,169.12 is: 5,753.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,705.98 : 10,634.19 = 4,169.12 : x
  2. Step 2: Convert to fraction form
    7,705.98/10,634.19 = 4,169.12/x
  3. Step 3: Cross multiply
    7,705.98x = 10,634.19 × 4,169.12
  4. Step 4: Simplify right side
    7,705.98x = 44,335,161.04
  5. Step 5: Solve for x
    x = 44,335,161.04/7,705.98
  6. Step 6: Final answer
    x = 5,753.34

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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.