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Finding the Fourth Proportional to 18,497.16, 27,760.32 and 8,641.08

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Solution

The fourth proportional to 18,497.16, 27,760.32 and 8,641.08 is: 12,968.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,497.16 : 27,760.32 = 8,641.08 : x
  2. Step 2: Convert to fraction form
    18,497.16/27,760.32 = 8,641.08/x
  3. Step 3: Cross multiply
    18,497.16x = 27,760.32 × 8,641.08
  4. Step 4: Simplify right side
    18,497.16x = 239,879,145.95
  5. Step 5: Solve for x
    x = 239,879,145.95/18,497.16
  6. Step 6: Final answer
    x = 12,968.43

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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.