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Finding the Fourth Proportional to 7,738.84, 10,678.26 and 4,593.88

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Solution

The fourth proportional to 7,738.84, 10,678.26 and 4,593.88 is: 6,338.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.84 : 10,678.26 = 4,593.88 : x
  2. Step 2: Convert to fraction form
    7,738.84/10,678.26 = 4,593.88/x
  3. Step 3: Cross multiply
    7,738.84x = 10,678.26 × 4,593.88
  4. Step 4: Simplify right side
    7,738.84x = 49,054,645.05
  5. Step 5: Solve for x
    x = 49,054,645.05/7,738.84
  6. Step 6: Final answer
    x = 6,338.76

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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.