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Finding the Fourth Proportional to 7,218.95, 10,834.43 and 7,164.27

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Solution

The fourth proportional to 7,218.95, 10,834.43 and 7,164.27 is: 10,752.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.95 : 10,834.43 = 7,164.27 : x
  2. Step 2: Convert to fraction form
    7,218.95/10,834.43 = 7,164.27/x
  3. Step 3: Cross multiply
    7,218.95x = 10,834.43 × 7,164.27
  4. Step 4: Simplify right side
    7,218.95x = 77,620,745.99
  5. Step 5: Solve for x
    x = 77,620,745.99/7,218.95
  6. Step 6: Final answer
    x = 10,752.37

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1.5x scale

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.