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Finding the Fourth Proportional to 19,191.58, 28,787.36 and 8,095.32

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Solution

The fourth proportional to 19,191.58, 28,787.36 and 8,095.32 is: 12,142.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,191.58 : 28,787.36 = 8,095.32 : x
  2. Step 2: Convert to fraction form
    19,191.58/28,787.36 = 8,095.32/x
  3. Step 3: Cross multiply
    19,191.58x = 28,787.36 × 8,095.32
  4. Step 4: Simplify right side
    19,191.58x = 233,042,891.16
  5. Step 5: Solve for x
    x = 233,042,891.16/19,191.58
  6. Step 6: Final answer
    x = 12,142.98

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Similar ratio
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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.