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Finding the Fourth Proportional to 19,165.14, 28,753.97 and 8,074.94

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Solution

The fourth proportional to 19,165.14, 28,753.97 and 8,074.94 is: 12,115.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,165.14 : 28,753.97 = 8,074.94 : x
  2. Step 2: Convert to fraction form
    19,165.14/28,753.97 = 8,074.94/x
  3. Step 3: Cross multiply
    19,165.14x = 28,753.97 × 8,074.94
  4. Step 4: Simplify right side
    19,165.14x = 232,186,398.37
  5. Step 5: Solve for x
    x = 232,186,398.37/19,165.14
  6. Step 6: Final answer
    x = 12,115.04

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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.