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Finding the Fourth Proportional to 4,884.81, 7,326.90 and 1,961.01

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Solution

The fourth proportional to 4,884.81, 7,326.90 and 1,961.01 is: 2,941.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,884.81 : 7,326.90 = 1,961.01 : x
  2. Step 2: Convert to fraction form
    4,884.81/7,326.90 = 1,961.01/x
  3. Step 3: Cross multiply
    4,884.81x = 7,326.90 × 1,961.01
  4. Step 4: Simplify right side
    4,884.81x = 14,368,124.17
  5. Step 5: Solve for x
    x = 14,368,124.17/4,884.81
  6. Step 6: Final answer
    x = 2,941.39

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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.