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Finding the Fourth Proportional to 19,092.57, 28,619.31 and 8,005.68

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Solution

The fourth proportional to 19,092.57, 28,619.31 and 8,005.68 is: 12,000.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,092.57 : 28,619.31 = 8,005.68 : x
  2. Step 2: Convert to fraction form
    19,092.57/28,619.31 = 8,005.68/x
  3. Step 3: Cross multiply
    19,092.57x = 28,619.31 × 8,005.68
  4. Step 4: Simplify right side
    19,092.57x = 229,117,037.68
  5. Step 5: Solve for x
    x = 229,117,037.68/19,092.57
  6. Step 6: Final answer
    x = 12,000.32

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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.