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Finding the Fourth Proportional to 4,675.89, 7,017.93 and 3,945.99

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Solution

The fourth proportional to 4,675.89, 7,017.93 and 3,945.99 is: 5,922.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,675.89 : 7,017.93 = 3,945.99 : x
  2. Step 2: Convert to fraction form
    4,675.89/7,017.93 = 3,945.99/x
  3. Step 3: Cross multiply
    4,675.89x = 7,017.93 × 3,945.99
  4. Step 4: Simplify right side
    4,675.89x = 27,692,681.60
  5. Step 5: Solve for x
    x = 27,692,681.60/4,675.89
  6. Step 6: Final answer
    x = 5,922.44

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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.