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Finding the Fourth Proportional to 4,715.77, 7,072.74 and 4,481.61

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Solution

The fourth proportional to 4,715.77, 7,072.74 and 4,481.61 is: 6,721.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,715.77 : 7,072.74 = 4,481.61 : x
  2. Step 2: Convert to fraction form
    4,715.77/7,072.74 = 4,481.61/x
  3. Step 3: Cross multiply
    4,715.77x = 7,072.74 × 4,481.61
  4. Step 4: Simplify right side
    4,715.77x = 31,697,262.31
  5. Step 5: Solve for x
    x = 31,697,262.31/4,715.77
  6. Step 6: Final answer
    x = 6,721.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.