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Finding the Fourth Proportional to 27,909.93, 41,869.08 and 8,186.16

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Solution

The fourth proportional to 27,909.93, 41,869.08 and 8,186.16 is: 12,280.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,909.93 : 41,869.08 = 8,186.16 : x
  2. Step 2: Convert to fraction form
    27,909.93/41,869.08 = 8,186.16/x
  3. Step 3: Cross multiply
    27,909.93x = 41,869.08 × 8,186.16
  4. Step 4: Simplify right side
    27,909.93x = 342,746,987.93
  5. Step 5: Solve for x
    x = 342,746,987.93/27,909.93
  6. Step 6: Final answer
    x = 12,280.47

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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.