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Finding the Fourth Proportional to 2,177.93, 3,265.67 and 716.96

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Solution

The fourth proportional to 2,177.93, 3,265.67 and 716.96 is: 1,075.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.93 : 3,265.67 = 716.96 : x
  2. Step 2: Convert to fraction form
    2,177.93/3,265.67 = 716.96/x
  3. Step 3: Cross multiply
    2,177.93x = 3,265.67 × 716.96
  4. Step 4: Simplify right side
    2,177.93x = 2,341,334.85
  5. Step 5: Solve for x
    x = 2,341,334.85/2,177.93
  6. Step 6: Final answer
    x = 1,075.03

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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.