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Finding the Fourth Proportional to 4,876.62, 7,314.79 and 1,954.81

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Solution

The fourth proportional to 4,876.62, 7,314.79 and 1,954.81 is: 2,932.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,876.62 : 7,314.79 = 1,954.81 : x
  2. Step 2: Convert to fraction form
    4,876.62/7,314.79 = 1,954.81/x
  3. Step 3: Cross multiply
    4,876.62x = 7,314.79 × 1,954.81
  4. Step 4: Simplify right side
    4,876.62x = 14,299,024.64
  5. Step 5: Solve for x
    x = 14,299,024.64/4,876.62
  6. Step 6: Final answer
    x = 2,932.16

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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.