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Finding the Fourth Proportional to 4,784.05, 7,173.14 and 1,858.94

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Solution

The fourth proportional to 4,784.05, 7,173.14 and 1,858.94 is: 2,787.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,784.05 : 7,173.14 = 1,858.94 : x
  2. Step 2: Convert to fraction form
    4,784.05/7,173.14 = 1,858.94/x
  3. Step 3: Cross multiply
    4,784.05x = 7,173.14 × 1,858.94
  4. Step 4: Simplify right side
    4,784.05x = 13,334,436.87
  5. Step 5: Solve for x
    x = 13,334,436.87/4,784.05
  6. Step 6: Final answer
    x = 2,787.27

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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.