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Finding the Fourth Proportional to 7,054.87, 9,736.11 and 3,910.99

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Solution

The fourth proportional to 7,054.87, 9,736.11 and 3,910.99 is: 5,397.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,054.87 : 9,736.11 = 3,910.99 : x
  2. Step 2: Convert to fraction form
    7,054.87/9,736.11 = 3,910.99/x
  3. Step 3: Cross multiply
    7,054.87x = 9,736.11 × 3,910.99
  4. Step 4: Simplify right side
    7,054.87x = 38,077,780.17
  5. Step 5: Solve for x
    x = 38,077,780.17/7,054.87
  6. Step 6: Final answer
    x = 5,397.38

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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.