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Finding the Fourth Proportional to 7,150.71, 10,722.29 and 2,763.75

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Solution

The fourth proportional to 7,150.71, 10,722.29 and 2,763.75 is: 4,144.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,150.71 : 10,722.29 = 2,763.75 : x
  2. Step 2: Convert to fraction form
    7,150.71/10,722.29 = 2,763.75/x
  3. Step 3: Cross multiply
    7,150.71x = 10,722.29 × 2,763.75
  4. Step 4: Simplify right side
    7,150.71x = 29,633,715.17
  5. Step 5: Solve for x
    x = 29,633,715.17/7,150.71
  6. Step 6: Final answer
    x = 4,144.16

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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.