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Finding the Fourth Proportional to 15,161.99, 22,729.41 and 7,259.63

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Solution

The fourth proportional to 15,161.99, 22,729.41 and 7,259.63 is: 10,882.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,161.99 : 22,729.41 = 7,259.63 : x
  2. Step 2: Convert to fraction form
    15,161.99/22,729.41 = 7,259.63/x
  3. Step 3: Cross multiply
    15,161.99x = 22,729.41 × 7,259.63
  4. Step 4: Simplify right side
    15,161.99x = 165,006,993.07
  5. Step 5: Solve for x
    x = 165,006,993.07/15,161.99
  6. Step 6: Final answer
    x = 10,882.94

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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.