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Finding the Fourth Proportional to 7,392.66, 10,202.94 and 4,878.54

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Solution

The fourth proportional to 7,392.66, 10,202.94 and 4,878.54 is: 6,733.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,392.66 : 10,202.94 = 4,878.54 : x
  2. Step 2: Convert to fraction form
    7,392.66/10,202.94 = 4,878.54/x
  3. Step 3: Cross multiply
    7,392.66x = 10,202.94 × 4,878.54
  4. Step 4: Simplify right side
    7,392.66x = 49,775,450.91
  5. Step 5: Solve for x
    x = 49,775,450.91/7,392.66
  6. Step 6: Final answer
    x = 6,733.09

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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.