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Finding the Fourth Proportional to 7,272.70, 10,882.05 and 5,328.70

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Solution

The fourth proportional to 7,272.70, 10,882.05 and 5,328.70 is: 7,973.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.70 : 10,882.05 = 5,328.70 : x
  2. Step 2: Convert to fraction form
    7,272.70/10,882.05 = 5,328.70/x
  3. Step 3: Cross multiply
    7,272.70x = 10,882.05 × 5,328.70
  4. Step 4: Simplify right side
    7,272.70x = 57,987,179.84
  5. Step 5: Solve for x
    x = 57,987,179.84/7,272.70
  6. Step 6: Final answer
    x = 7,973.27

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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.