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Finding the Fourth Proportional to 19,182.88, 28,774.16 and 7,504.24

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Solution

The fourth proportional to 19,182.88, 28,774.16 and 7,504.24 is: 11,256.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,182.88 : 28,774.16 = 7,504.24 : x
  2. Step 2: Convert to fraction form
    19,182.88/28,774.16 = 7,504.24/x
  3. Step 3: Cross multiply
    19,182.88x = 28,774.16 × 7,504.24
  4. Step 4: Simplify right side
    19,182.88x = 215,928,202.44
  5. Step 5: Solve for x
    x = 215,928,202.44/19,182.88
  6. Step 6: Final answer
    x = 11,256.30

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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.