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Finding the Fourth Proportional to 2,177.94, 3,266.85 and 716.73

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Solution

The fourth proportional to 2,177.94, 3,266.85 and 716.73 is: 1,075.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.94 : 3,266.85 = 716.73 : x
  2. Step 2: Convert to fraction form
    2,177.94/3,266.85 = 716.73/x
  3. Step 3: Cross multiply
    2,177.94x = 3,266.85 × 716.73
  4. Step 4: Simplify right side
    2,177.94x = 2,341,449.40
  5. Step 5: Solve for x
    x = 2,341,449.40/2,177.94
  6. Step 6: Final answer
    x = 1,075.08

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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.