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Finding the Fourth Proportional to 7,272.68, 10,899.42 and 2,651.24

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Solution

The fourth proportional to 7,272.68, 10,899.42 and 2,651.24 is: 3,973.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.68 : 10,899.42 = 2,651.24 : x
  2. Step 2: Convert to fraction form
    7,272.68/10,899.42 = 2,651.24/x
  3. Step 3: Cross multiply
    7,272.68x = 10,899.42 × 2,651.24
  4. Step 4: Simplify right side
    7,272.68x = 28,896,978.28
  5. Step 5: Solve for x
    x = 28,896,978.28/7,272.68
  6. Step 6: Final answer
    x = 3,973.36

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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.